Changes

-  First part of cleaned field access transformation. -  Read of field
of local object. -  Does not work for local fields, because the nodes
are of a different    type, so they must be matched separately (VarExp
vs. FieldExp.)
	modified:   core/vdm2c/NativeClassesTests.launch
modified:  
core/vdm2c/src/main/java/org/overture/codegen/vdm2c/CTransSeries.java
modified:  
core/vdm2c/src/main/java/org/overture/codegen/vdm2c/transformations/FieldReadToFieldGetMacroTrans.java
modified:  
core/vdm2c/src/test/java/org/overture/codegen/vdm2c/NativeClassesTests.java
modified:  
core/vdm2c/src/test/resources/vdmrt/classes/ClassPublicFieldsTMP.vdmrt
 (commit: 8c2eff1)