Add script for checking non-tested functions
Fix bug is sampler wrapper when compiling for OpenCL 2.0
Fix auto semver from git in Windows
Fix clGet*Info() functions typedef which caused problems on Windows
Fix clRelease*() functions typedef which caused problems in Windows

Everything seems to be working in Windows, except the op_profiler
test, probably because of CR LF's.
Add script to check if function decls exists without definition
Fix bug in checktests script
Add some tests for buffer wrapper (more required)

Refactor name of tests
Add buffer read/write capabilities to OCL stub

Buffer tests pass with OCL stub and with real OCL implementations,
no leaks.
Add map/unmap capabilities to OCL stub + update profiler_op test
to reflect these changes in the OCL stub.
Add test for buffer copy + update OCL stub accordingly
Add test for buffer fill + update OCL stub accordingly
Add basic image test

Use <cf4ocl2.h> header in all tests.
Improve tests comments.
Fix typo in image_wrapper.h comment.
Refactor image constructor, which now accepts a vararg list
of key-value pairs which describe the image. The old constructor
still exists but was renamed to ccl_image_new_v().

Update image test accordingly.
Add more image tests

Fill test is currently failing
OCL stub: set clCreateCommandQueue deprecated with OCL 2.0 headers
OCL stub: add image implementation

- cl_mem represents both buffers and images in stub
- Improve image_create_info_destroy_test by adding the
element size query
- Undo stuff done in commit 1718bb3dda (no need to put deprecated
in implementation)
Small front doc improvements
Add sampler test cases

All tests pass
Update .gitignore to ignore txt and IDE project files