Updating the benchmarks

[jwilner]

Hi -- I had a lot of fun working with this benchmark suite in developing RTE, so I thought I'd bring the suite up to date and add my router (which maybe makes some controversial decisions, but objectively does pretty darn well I think!).

Just to highlight the single param benchmark:

BenchmarkRTE_Param         	20000000	        65.5 ns/op	       0 B/op	       0 allocs/op
BenchmarkGin_Param         	20000000	        80.0 ns/op	       0 B/op	       0 allocs/op
BenchmarkLARS_Param        	20000000	        87.0 ns/op	       0 B/op	       0 allocs/op
BenchmarkEcho_Param        	20000000	       105 ns/op	       0 B/op	       0 allocs/op
BenchmarkHttpRouter_Param  	10000000	       139 ns/op	      32 B/op	       1 allocs/op
BenchmarkDenco_Param       	10000000	       175 ns/op	      32 B/op	       1 allocs/op
BenchmarkKocha_Param       	 5000000	       325 ns/op	      56 B/op	       3 allocs/op
BenchmarkVulcan_Param      	 2000000	       724 ns/op	      98 B/op	       3 allocs/op
BenchmarkHttpTreeMux_Param 	 2000000	       731 ns/op	     352 B/op	       3 allocs/op
BenchmarkGoji_Param        	 2000000	       806 ns/op	     336 B/op	       2 allocs/op
BenchmarkR2router_Param    	 2000000	       908 ns/op	     432 B/op	       5 allocs/op
BenchmarkBear_Param        	 1000000	      1092 ns/op	     456 B/op	       5 allocs/op
BenchmarkTango_Param       	 1000000	      1337 ns/op	     248 B/op	       8 allocs/op
BenchmarkPossum_Param      	 1000000	      1633 ns/op	     496 B/op	       5 allocs/op
BenchmarkBeego_Param       	 1000000	      1656 ns/op	     352 B/op	       3 allocs/op
BenchmarkGocraftWeb_Param  	 1000000	      1770 ns/op	     648 B/op	       8 allocs/op
BenchmarkPat_Param         	 1000000	      1848 ns/op	     536 B/op	      11 allocs/op
BenchmarkBone_Param        	 1000000	      1905 ns/op	     816 B/op	       6 allocs/op
BenchmarkGoJsonRest_Param  	 1000000	      1979 ns/op	     649 B/op	      13 allocs/op
BenchmarkTigerTonic_Param  	 1000000	      2984 ns/op	     776 B/op	      16 allocs/op
BenchmarkGojiv2_Param      	  500000	      2986 ns/op	    1328 B/op	      11 allocs/op
BenchmarkGorillaMux_Param  	  500000	      3281 ns/op	    1280 B/op	      10 allocs/op
BenchmarkMacaron_Param     	  500000	      3443 ns/op	    1072 B/op	      10 allocs/op
BenchmarkTraffic_Param     	  300000	      5251 ns/op	    1856 B/op	      21 allocs/op
BenchmarkMartini_Param     	  200000	      6191 ns/op	    1075 B/op	      10 allocs/op
BenchmarkGoRestful_Param   	  200000	      7944 ns/op	    2792 B/op	      22 allocs/op

• Add go.mod support
• Remove packages which don't compile anymore
• Adds RTE