Added all Testbenches to Modelsim and confirmed working operation

Quartus/A1_Q5/db/shifter.tmw_info

@@ -0,0 +1,7 @@
+start_full_compilation:s:00:01:02
+start_analysis_synthesis:s:00:00:13-start_full_compilation
+start_analysis_elaboration:s-start_full_compilation
+start_fitter:s:00:00:33-start_full_compilation
+start_assembler:s:00:00:07-start_full_compilation
+start_timing_analyzer:s:00:00:06-start_full_compilation
+start_eda_netlist_writer:s:00:00:03-start_full_compilation