Re-added test files to build and fixed failing tests

Re-added test files to build and fixed failing tests

Test cases had been commented out for speed of build/execution
and accidentally left commented out when checked in... Uncommented
all the test cases.

Consequently, some test cases are failing following a merge of Dali-Core's
test stub files - have now upgraded the test platform for GlAbstraction
to enable finding gl calls by method and named parameter.

Change-Id: I665038bd9983ef326778133ae5846472943eb873
Signed-off-by: David Steele <david.steele@samsung.com>