Added tb_tb_tb_eth.vhd to simulate eth for multiple technologies (currently only stratixiv).

Therefore now no need anymore for quartus_copy_files of triple_speed_ethernet-library from $UNB to $RADIOHDL in hdllib.cfg.

Remove ip_stratixiv_mac_10g.vhd, because it is the same as original ../ip_stratixiv_mac_10g.vhd that is used by the hdllib.cfg.
The removed ip_stratixiv_mac_10g.vhd is used in the ip_stratixiv_mac_10g.qip, but that is no problem, because ../ip_stratixiv_mac_10g.vhd is included already.

No need for tech_xaui_component_pkg, because the IP instantiation is done in tech_xaui_stratixiv.vhd

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.

Ported wave_tb_phy_xaui.do to wave_tb_ip_stratixiv_phy_xaui.do.

The soft XAUI qip that is generated by the MegaWizard includes the following assignment:

set_global_assignment -library "lib_phy_xaui" -name SYSTEMVERILOG_FILE [file join $::quartus(qip_path) phy_xaui/altera_xcvr_xaui.sv]

which assigns a file that is exactly the same as a file in the HARD xaui QIP, which causes ambiguity in Quartus. Therefore the assignment
has been stripped from the soft XAUI qip. The resulting QIP has been put in this dir and is read by Quartus instead of the generated QIP.

Prepare for porting XAUI IP from /home/kooistra/svnroot/UniBoard_FP7/UniBoard/trunk to /home/kooistra/svnroot/UniBoard_FP7/RadioHDL/trunk.