Removed compounds:  bhkRDTConstraint, bhkRDTMalleableConstraint.

Renamed compound: SubConstraint->ConstraintData (to reflect hkpConstraintData*)

Created:  MalleableDescriptor (to reflect other Descriptor compounds)

Corrected bhkRagdollTemplate inheritance.  Fully decoded bhkRagdollTemplateData.

bhkRDT now load without error or link validation warnings.

This was necessary so that Fallout3HavokMaterial actually applied to all FO3 NIF versions (e.g. User Version 2 == 16)

Pull in some of the documentation from #39 and fix the type names and the bone transform layout.

Seems niflib wants that row to be a special type, so fix "InertiaMatrix" to be the real type, `hkMatrix3` and use it for the Inertia Tensor.

Changes to:
- BallAndSocketDescriptor
- Renamed PivotAB to ConstraintInfo
- bhkBallSocketConstraintChain
- bhkPoseArray

Changes to:
- BallAndSocketDescriptor
- NiAVObject (uint flags)
- NiCamera
- NiSwitchNode
- NiPSysGravityModifier
- BSPSysInheritVelocityModifier
- BSPSysRecycleBoundModifier
- BSPSysLODModifier
- BSValueNode
- BSStripPSysData
- BSPSysMultiTargetEmitterCtlr
- BSOrderedNode
- BSDebrisNode
- BSBlastNode
- BSDamageStage
- BSMultiBoundNode
- BSMultiBound
- BSMultiBoundSphere

New objects:
- BSRangeNode

New bitflags:
- NiSwitchFlags
- BSValueNodeFlags

New enums:
- BSCPCullingType

The phrase "Shape Scale" was used as "Scale" was already taken for the
MOPP Scaling Factor and is referred to by code.

Did bhkRigidBody and added the correct rows to bhkWorldObject for
correct bhkSimpleShapePhantom size.

Mesh changed require adjustment in codebases (e.g. NifSkope).

Changes to:
- bhkCMSDBigTris
- bhkCMSDChunk
- bhkSimpleShapePhantom
- bhkBallSocketConstraintChain
- bhkCapsuleShape
- bhkBoxShape
- bhkConvexVerticesShape
- bhkListShape
- bhkPackedNiTriStripsShape
- bhkNiTriStripsShape
- bhkBlendCollisionObject
- BSEffectShaderProperty (split values from clamp mode)
- bhkConvexListShape
- bhkLiquidAction
- bhkAabbPhantom
- bhkOrientHingedBodyAction
- bhkCompressedMeshShapeData

New objects:
- bhkPoseArray (uncommented)

New compounds:
- hkWorldObjCinfoProperty
- PivotAB

Changes to:
- BSDecalPlacementVectorExtraData
- BSDistantObjectLargeRefExtraData

Changes to:
- NiPathInterpolator
- NiBlendInterpolator
- NiBoneLODController
- bhkBlendController
- NiSequence
- NiLookAtInterpolator
- BSProceduralLightningController
- BSAnimNotes

New objects:
- BSAnimNote

New enums:
- PathFlags
- InterpBlendFlags
- LookAtFlags
- AnimNoteType

New compounds:
- InterpBlendItem

Fixes issue with collapsing XML elements in VS Code.

Added motor descriptor to Prismatic constraint.

Added motor variable explanations, added default values and removed the white spaces.

Added motor type selector for Ragdoll and Limited Hinge constraint.

Support for SSE.  The BSVertexData had to be moved up for the
SkinPartition.  The changes have been tested on all SSE files and used
for the past several months with no issue.  There are no known FO4
regressions.

A new token for division in expressions was introduced, `#DIV#`, as "/"
is used in some XML attributes already and also causes parsing issues
with NifSkope which already uses that token for things at runtime.

The BSSegment PR from ttl269 has also been included in this as it is a
valid change and required for SSE.

In <basic> and <compound> the nifskopetype attribute was used as an
alias system to remap types to internal types.   NifSkope now handles
the remapping internally.   One single downside to this is that new
basic/compound cannot be remapped to an internal type via XML alone, it
must be added to NifSkope.  However, if this proves to ever be an issue,
NifSkope can house another file in the installation where the remapping
can be done.

Additionally, nifskopetype was used in some <add> rows to denote that
the data was a binary blob.  I have instead replaced this with a more
generic `binary="1"`.  This is also more informative as generally these
rows are actually embedded files.

Lastly I removed a lot of custom "ns" compounds which NifSkope no longer
seems to use.  It would seem these compounds were even pre-nifskopetype
attribute.

There were 16 changed shader flags between game versions.  This creates
a new set of enums for FO4 so that the proper descriptions can be shown
for the bits.

Also, the original vercond for Shader Flags 1/2 was unnecessary.  The
Skyrim NIFs that are User Version == 11 are actually structured like FO3
NIFs and use different shader blocks.  So changing the condition like I
did is a sound change, and I've already scanned all vanilla Skyrim NIFs.

Also changed inheritance for bhkNPCollisionObject because the Flags are
different now.  Also bhk*System aren't actually extra data so I changed
the inheritance there.

Names were again changed to mimic what they are called in the engine.
Some previously unknowns were clarified as well.

Changed to match the names found in the engine.

After changes to NifSkope parsing there is no longer a huge benefit to
bypassing all the cond="" / ARG checking on the BSVertexData.  The other
programs did not have this issue, so the variants can be removed.

Combined VF6 and VF7, created <bitflags> after rigorous testing.
Rigorous catch-all compound instead of the mess before.  Removed edge
case compounds as they are no longer needed.   Left optimized compounds
for NifSkope speed issues.

PyFFI does not like missing template attributes for Ref/Ptr despite the
documentation saying the attribute is optional.

Validation for "Skin" on BSTriShape is set only to NiObject for the time
being.  Setting it to BSSkin::Instance would require moving around the
blocks.