examples/ncd_parser_test: Handle variables in values.
ncd: Add parser support for function invocations and parentheses in value expressions.
ncd: NCDVal: Micro refactoring.
ncd: NCDVal: Use maxalign to ensure alignment of fastbuf.
This will allow moving lots of implementation details out of the header.
ncd: NCDVal: Move lots of implementation details out of the header.
NCDInterpProcess: Move structure definition to c file.