Add support for Iff 1.0 to Volcanic for SPR# Chunks

[JDrocks450]

Brief Add support for viewing IFF v1.0 in Volcanic. Supported chunk types are: SPR#, BHAV (wip), STR.

Sprites Z-Buffers

Sprites that are not inherently objects can also be viewed by using the 'Frames/Rotations' button on SPRResourceControl to view them as frames and not interpreted as an object

Exported Sprites

BHAV (wip)

Video Here is a recorded video demonstrating how the submission works (OneDrive)

Changes Summary

• Add support for IFF 1.0 Header
• Add SPFResControl for viewing SPF# chunks
• Modified STR chunk reader to use parent IFF file version to read strings from Steering Commitee IFF files
• Add Grayscale PALT by default instead of all black
  • Add contructor overload for PALT to allow for manually-built color palettes (unused as of now)
• Modified Toolstrip Items for loading External Iff in MainWindow.cs to support Iff & Spf and added a special dialog for loading both at once into a GameObject.
• Modified IFFResComponent to support SPR# resources using the SPRResControl
• Added methods in SpriteEncoderUtils to support SPR# resources

All of these changes isolate themselves from any existing functionality and use the existing functionality as a baseline to implement the new features to remain consistent.