Enhance frame rate calculations with double and SDL performance counter #1246

Job	Run time
macos	32m 16s
android	27m 41s
air-samples (4.0.5)	3m 8s
docs	34s
windows	14m 20s
air-samples (4.1.5)	2m 59s
flash-samples	37s
air-samples (4.2.5)	3m 20s
html5-samples	1m 16s
air-samples (4.3.1)	3m 21s
ios	15m 41s
linux	14m 7s
package-haxelib	2m 29s
hashlink-samples (windows-latest)	41s
hashlinkc-samples (windows-latest)	1m 49s
hashlink-samples (ubuntu-20.04)	17s
hashlinkc-samples (ubuntu-20.04)	2m 0s
neko-samples (3.4.7, windows-latest)	54s
hashlink-samples (macos-12)	49s
hashlinkc-samples (macos-12)	2m 0s
neko-samples (3.4.7, ubuntu-20.04)	18s
neko-samples (3.4.7, macos-12)	49s
neko-samples (4.2.5, windows-latest)	49s
neko-samples (4.2.5, ubuntu-20.04)	28s
neko-samples (4.2.5, macos-12)	47s
notify	0s
	2h 13m 30s

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