Added custom property drawer for Variable properties.
Updated If, Set Variable, etc. to use new property drawer.
Added new Set Save Profile, Save Variable, Load Variable & Delete Save
Key commands.
Added Other category for non-core variable types.
Wider variable window to fit long type names.
Use internal editor component paste instead of reflection to paste
commands
SetVariable only supports 4 basic variable types.
Simplified definition for new variable types.
Added new variable types to support core Unity types.
Changed layout of Variables window to support editable value
Public variables in other FungusScripts appear in the variable picker
popup menu.
Variables now have a public value property and remember their starting
value for when they are reset.
Disabled LoadGlobals / SaveGlobals commands.
Changed all variable classes to use simple public value variable.
Added FungusScript.GetPublicVariables()
Deleted GlobalVariables class.
Added Variables test scene
chrisgregan