Add scripting function for turning player invincible (without star) #3348

Job	Run time
windows (x64, Debug, OFF)	7m 23s
windows (x64, RelWithDebInfo, OFF)	12m 14s
windows (x86, Debug, OFF)	8m 17s
windows (x86, RelWithDebInfo, OFF)	10m 46s
	38m 40s

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