ToStringEx benchmarks

See enums used here. Code to produce this benchmark is here.

Note; Lidgren_SimpleEnum with a constant enum value did in fact produce a constant return value, so no-op; but the test was changed to a variable enum in the chart below.

Method	Mean	Error	StdDev	Median	Ratio	RatioSD	Gen 0	Gen 1	Gen 2	Allocated
Core_SimpleEnum	25.4141 ns	0.1378 ns	0.1289 ns	25.4311 ns	1.000	0.00	0.0057	-	-	24 B
EnumsNET_SimpleEnum	2.1029 ns	0.0108 ns	0.0090 ns	2.1051 ns	0.083	0.00	-	-	-	-
FastEnum_SimpleEnum	2.7236 ns	0.0075 ns	0.0059 ns	2.7227 ns	0.107	0.00	-	-	-	-
Lidgren_SimpleEnum	0.2332 ns	0.0095 ns	0.0084 ns	0.2331 ns	0.009	0.00	-	-	-	-
Core_OffsetDiscontinuousEnum	25.0412 ns	0.1363 ns	0.1275 ns	24.9862 ns	1.00	0.00	0.0057	-	-	24 B
EnumsNET_OffsetDiscontinuousEnum	1.9374 ns	0.0230 ns	0.0215 ns	1.9376 ns	0.08	0.00	-	-	-	-
FastEnum_OffsetDiscontinuousEnum	2.6799 ns	0.0274 ns	0.0243 ns	2.6759 ns	0.11	0.00	-	-	-	-
Lidgren_OffsetDiscontinuousEnum	1.6759 ns	0.0175 ns	0.0164 ns	1.6762 ns	0.07	0.00	-	-	-	-
Core_FlagsEnum_Single	21.5874 ns	0.4588 ns	0.6725 ns	21.1972 ns	1.00	0.00	0.0057	-	-	24 B
EnumsNET_FlagsEnum_Single	1.8807 ns	0.0147 ns	0.0130 ns	1.8822 ns	0.09	0.00	-	-	-	-
FastEnum_FlagsEnum_Single	2.5054 ns	0.0158 ns	0.0148 ns	2.5080 ns	0.11	0.00	-	-	-	-
Lidgren_FlagsEnum_Single	2.5364 ns	0.0148 ns	0.0131 ns	2.5404 ns	0.12	0.00	-	-	-	-
Core_FlagsEnum_Multi	40.9252 ns	0.2979 ns	0.2641 ns	40.8327 ns	1.00	0.00	0.0210	-	-	88 B
EnumsNET_FlagsEnum_Multi	NA	NA	NA	NA	?	?	-	-	-	-
FastEnum_FlagsEnum_Multi	NA	NA	NA	NA	?	?	-	-	-	-
Lidgren_FlagsEnum_Multi	42.5209 ns	0.1833 ns	0.1531 ns	42.5049 ns	1.04	0.01	0.0210	-	-	88 B