Wrapping ChangeLabelLabelMapFilter

Change-Id: Ie8fd08d64dda07e05a7fb37e0d5ca6ff05887104
Fixing documentation for TypeList "methods"

Change-Id: Ibb82d448db3255187dc72e8491934118a5507166
Adding Unsigned and Label IntegerPixelIDTypeLists

These lists should be useful for filters operating with LabelMaps, and
other label operations.

Change-Id: I9682abc870099e6229d82e2a8aeea254f9686645
LabelImageToLabelMap now keeps the same value type of the pixel

Before the output was always a label map of uint32, now it's the same
as the input.

Change-Id: Iae9e8f30d12011a3709a98dc24e73aad4dbe25e0
Merge topic 'SIMPLEITK-512_AddLabelMapFilters' into next

4621dad5 LabelImageToLabelMap now keeps the same value type of the pixel
6e549a6e Adding Unsigned and Label IntegerPixelIDTypeLists
cc1a9183 Fixing documentation for TypeList "methods"
c9c935c6 Wrapping ChangeLabelLabelMapFilter