Adds payload testing documentation #185

Job	Run time
build / Compile Java Meterpreter	0s
build / python 3.6 macos-13	3m 35s
build / python 3.11 macos-13	2m 32s
build / java 8 macos-13	8m 12s
build / java 21 macos-13	6m 11s
build / php 5.3 macos-13	7m 31s
build / php 7.4 macos-13	5m 58s
build / php 8.3 macos-13	5m 29s
build / python 3.6 windows-2019	6m 6s
build / python 3.11 windows-2019	5m 59s
build / java 8 windows-2019	5m 29s
build / java 21 windows-2019	7m 33s
build / php 5.3 windows-2019	9m 14s
build / php 7.4 windows-2019	13m 22s
build / php 8.3 windows-2019	3m 51s
build / python 3.6 ubuntu-20.04	2m 15s
build / python 3.11 ubuntu-20.04	2m 14s
build / java 8 ubuntu-20.04	1m 43s
build / java 21 ubuntu-20.04	2m 33s
build / php 5.3 ubuntu-20.04	2m 5s
build / php 7.4 ubuntu-20.04	1m 35s
build / php 8.3 ubuntu-20.04	1m 38s
build / windows_meterpreter windows-2019	14m 4s
build / windows_meterpreter windows-2022	15m 31s
build / mettle macos-13	5m 6s
build / mettle ubuntu-20.04	4m 5s
build / Generate report	2m 16s
	2h 26m 7s

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