Changes

Further improvements to static field access.
	modified:  
src/main/java/org/overture/codegen/vdm2c/CTransSeries.java
modified:  
src/main/java/org/overture/codegen/vdm2c/transformations/FieldExpRewriteTrans.java
modified:  
src/main/java/org/overture/codegen/vdm2c/transformations/FieldReadToFieldGetMacroTrans.java
renamed:   
src/main/java/org/overture/codegen/vdm2c/transformations/RenameFieldsTrans.java
->
src/main/java/org/overture/codegen/vdm2c/transformations/RenameFieldDeclsTrans.java
modified:  
src/test/java/org/overture/codegen/vdm2c/NativeClassesTests.java
 (commit: 9c66cde)