Init *_select_arr to avoid: Warning: NUMERIC_STD.TO_INTEGER: metavalue detected, returning 0, at startup in simulation.

SVN copied data and hex directories so that they can be referred to from $RADIOHDL instead of from $UNB.
SVN copied python, doc, matlab sub directories in tb or src to $RADIOHDL as well.
Only common/hdllib.cfg still refers to $UNB because some low level components (multipliers) are not technology independent yet.

Renamed key hdl_lib_uses into hdl_lib_uses_synth and added new key hdl_lib_uses_sim for extra test_bench_files library dependencies.

SVN copy/renamed tb_serdes.vhd to technology/transceiver/tb_sim_transceiver_serdes.vhd in RadioHDL/.

SVN copied serializer.vhd, deserializer.vhd and sim_gx.vhd to technology/transceiver/ in RadioHDL/ and renamed them with prefix 'sim_transceiver_'.

Renamed build_sim_dir into build_dir_sim, similar build_dir_synth. Use <tool_name>_copy_key based on build type 'sim' or 'synth' from hdltool.cfg. Renamed sim_tool_name into tool_name_sim in hdltool.cfg, similar for synth_tool_name.

Used hdl_config.py with mode=1 to change build_synth_dir key value into /home/kooistra/svnroot/UniBoard_FP7/RadioHDL/trunk/build for all hdllib.cfg dictionary files.