=ID Properties=

This commit adds supports for per-ID properties to blender.
See http://mediawiki.blender.org/index.php/BlenderDev/ID_Property
for more information on how it all works.

ID properties are accesable by python; but note that 
bindings have only been added to Object and Material thus
far.  However adding more bindings is easy and I plan
on adding several more hopefully within an hour of this inital 
commit.

A generic UI panel is also planned, that will go wherever its
needed; for example in the material buttons, editing buttons, etc.
I'll likely submit the initial code for that as a patch, though,
so matt and ton and others can go over it and make sure it's
all good. :)

VERY important, if you intend to use ID properties please
go to http://mediawiki.blender.org/index.php/BlenderDev/PropertyStandards
and start writing the appropriate standards for it.

source/blender/python/api2_2x/doc/IDProp.py

@@ -0,0 +1,65 @@
+class IDProperty:
+	"""
+	The IDProperty wrapper type
+	===========================
+	@ivar name: the name of the property
+	@ivar type: the property type (is read-only)
+	@ivar data: the property's data.  
+	"""
+	
+class IDGroup:
+	"""
+	The IDGroup wrapper type
+	========================
+	This type supports both iteration and the []
+	operator to get child ID properties.
+	
+	You can also add new properties using the [] operator.
+	For example:
+	
+	group['a float!'] = 0.0
+	group['an int!'] = 0
+	group['a string!'] = "hi!"
+	group['an array!'] = [0, 0, 1.0, 0] #note that any floats in the list
+	                                   #makes the whole list a float array.
+	group['a subgroup!] = {"float": 0.0, "an int": 1.0, "an array": [1, 2], \
+	  "another subgroup": {"a": 0.0, "str": "bleh"}}
+	 
+	you also do del group['item']
+	"""
+	
+	def newProperty(type, name, array_type="Float", val=""):
+		"""
+		This function creates a new child ID property in the group.
+		@type type: an int or a string
+		@param type: The ID property type.  Can be:
+			"String" or Blender.IDPropTypes['String']
+			"Int" or Blender.IDPropTypes['Int']
+			"Float" or Blender.IDPropTypes['Float']
+			"Array" or Blender.IDPropTypes['Array']
+			"Group" or Blender.IDPropTypes['Group']
+		"""
+	
+	def deleteProperty(prop):
+		"""
+		deletes a property, takes either a name or a reference
+		as an argument.
+		"""
+		
+class IDArray:
+	"""
+	The IDArray wrapper type
+	========================
+	
+	@ivar type: returns the type of the array, can be either IDP_Int or IDP_Float
+	"""
+	
+	def __getitem__(self):
+		pass
+	
+	def __setitem__(self):
+		pass
+	
+	def __len__(self):
+		pass
+