Linux

(#362) Added stumpless_param_to_string benchmark #833

Job	Run time
linux, debug	4m 5s
linux, debug, ansi	4m 4s
linux, release	5m 16s
linux, release, single file library	5m 11s
linux, release, static library	6m 55s
linux, all features disabled, debug	1m 43s
linux, with c++, debug	41s
linux, all features disabled, release	3m 11s
linux, with c++, release	48s
linux, fuzzer build	23s
linux, release, ansi	5m 29s
	37m 46s

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