Some refactorings and initial try at O(1) lookup of

compiler/C_CodeGen.jrag

lib/c/Makefile

lib/c/labcomm.c

lib/c/labcomm.h

lib/c/labcomm.linkscript

lib/c/labcomm_dynamic_buffer_writer.c

lib/c/labcomm_fd_reader.c

lib/c/labcomm_fd_reader.h

lib/c/labcomm_fd_writer.c

lib/c/labcomm_fd_writer.h

lib/c/labcomm_private.h

lib/c/test/labcomm_mem_reader.c

lib/c/test/labcomm_mem_reader.h

lib/c/test/labcomm_mem_writer.c

lib/c/test/test_labcomm.c

lib/c/test/test_labcomm_basic_type_encoding.c