Changes

Implementation at the VDM tree level of mechanism to ignore VDMUnit
tests.
	modified:  
core/vdm2c/src/main/java/org/overture/codegen/vdm2c/CGen.java
modified:  
core/vdm2c/src/main/java/org/overture/codegen/vdm2c/CTransSeries.java
deleted:   
core/vdm2c/src/main/java/org/overture/codegen/vdm2c/transformations/IgnoreVDMUnitTrans.java
 (commit: 3d917c7)