Include/xrRender/FactoryPtr.h: use operator bool instead of unspecifi… #4869

Job	Run time
Ubuntu Debug amd64 (gcc)	6m 2s
Ubuntu Release amd64 (gcc)	6m 6s
Ubuntu Debug amd64 (clang)	6m 51s
Ubuntu Release amd64 (clang)	10m 6s
Alpine Debug x86_64 (gcc)	1m 5s
Alpine Release x86_64 (gcc)	57s
FreeBSD Debug x86_64	6m 49s
Alpine Debug x86 (gcc)	53s
Alpine Release x86 (gcc)	1m 3s
FreeBSD Release x86_64	9m 20s
OpenBSD Debug x86_64	10m 57s
Fedora Debug x86_64 (gcc)	17m 18s
OpenBSD Release x86_64	8m 59s
Fedora Release x86_64 (gcc)	15m 45s
NetBSD Debug x86_64	1m 58s
macOS Debug x86_64 (clang)	6m 53s
Windows Debug x64 (msvc)	6m 35s
NetBSD Release x86_64	1m 57s
macOS Release x86_64 (clang)	9m 48s
Windows Debug x86 (msvc)	30m 13s
macOS Debug arm64 (clang)	4m 7s
Windows Mixed x64 (msvc)	6m 17s
macOS Release arm64 (clang)	5m 5s
Windows Mixed x86 (msvc)	5m 58s
Windows Release x64 (msvc)	10m 42s
Windows Release x86 (msvc)	10m 24s
Windows Release Master Gold x64 (msvc)	9m 6s
Windows Release Master Gold x86 (msvc)	8m 55s
	3h 40m 9s

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