Updating member access template component with const correctness

Change-Id: I3cc71d8fb12fa102bf0e5482db008b7ec805ee22
Adding const correctness to the IO module

Change-Id: I2d12feeaa13f5a588664e49eeb8c5b8cba2e8389
Updating const correctness of Get methods in BasicFilters

Change-Id: If176da950af404754071cebc571b3e1fe6be6568
change linkage of functions to match new library

Change-Id: I3790acd12d817b994825fce18f2c3e4943b8d3c4
Still use filter0 link specification for image filter base class

Change-Id: I0b394e64e168f888269716b6cf8e17ade6c24bce
Merge topic 'SIMPLEITK-449_AddMoreMatrixTransforms'

1f796dc fix spelling of Similarity
9a24a63 Adding transform test of get parameters
3d2e507 Add basic testing of construction of new transforms.
2935de1 Adding Euler Similarity and VersorRigid transforms
Merge topic 'SIMPLEITK-450_BreakUpLabelStatistics2'

34fb5d7 Still use filter0 link specification for image filter base class
d5a721f change linkage of functions to match new library
b2c1dd3 Move manually wrapped from basic filters library 0
01f4d3e Separate LabelStatisticsFilter instantiation
Merge topic 'SIMPLEITK-447_AddProcessObjectBase'

55d38a6 Merge topic 'SIMPLEITK-450_BreakUpLabelStatistics' into SIMPLEITK-447_AddProcessObjectBase
516a021 Moving ProcessObject to Common directory
Merge topic 'SIMPLEITK-452_AddConstCorrectness'

7b16c70 Updating const correctness of Get methods in BasicFilters
b935900 Adding const correctness to the IO module
9d0bc4a Updating member access template component with const correctness
WIP WIP WIP hacking at image registration method

WARNING: This topic will be re-based and hacked along the next
branch.

This is an initial prototype of what the ImageRegionstrationMethod may
look like in SimpleITK. It contains some examples to play with but no
tests. It's will dramatically change before being integrated. As many
Optimizers and Metrics have been added without testing to explore how
the interface and implementation will need to be done to be as
flexible as possible.

Change-Id: I37a198d959a3ce97ba8d23ae8c8189cfa4a74d9b
WIP: This is dependent on the progress report topic

NOTE: This patch does not compile until the progress callback topic is
merged in. Try parent class to look at the registration
independently.

 adding hooks to execute commands on optimizer iterations events

Change-Id: I36341fb696a2392f1b4f2ad75980cbf128ed0d99