generates C headers from df-structures codegen.out.xml
invocation:
perl codegen_c_hdr_ghidra.pl [--linux] [--32] <codegen.out.xml>
will output codegen.h, and the name should not be changed when importing into Ghidra
generates a Ghidra script to create globals and vmethods, apply their types, etc.
invocation:
perl symbols_to_ghidra.pl <symbol-table name> <codegen.out.xml> <symbols.xml> > ghidra_scripts_folder/df_ghidra.java