Add ability to open a synced realm without sync configuration. #1227

Job	Run time
macOS Debug, Xcode 15.4, REALM_DISABLE_ALIGNED_STORAGE=1	3h 29m 57s
macOS Debug, Xcode 15.4, REALM_DISABLE_ALIGNED_STORAGE=0	14m 41s
macOS Release, Xcode 15.4, REALM_DISABLE_ALIGNED_STORAGE=1	14m 12s
macOS Release, Xcode 15.4, REALM_DISABLE_ALIGNED_STORAGE=0	14m 31s
Windows Debug	18m 49s
Windows Release	3h 29m 45s
Linux Debug (gcc 8.3)	14m 25s
Linux Release (gcc 8.3)	16m 8s
Linux Debug (gcc 9.1)	18m 38s
Linux Release (gcc 9.1)	18m 39s
Linux Debug (gcc 10.1)	17m 19s
Linux Release (gcc 10.1)	17m 42s
Linux Debug (gcc 11.1)	21m 24s
Linux Release (gcc 11.1)	18m 11s
Linux Debug (gcc 12.1)	17m 58s
Linux Release (gcc 12.1)	18m 19s
Linux Debug (clang 15)	15m 17s
Linux Release (clang 15)	15m 13s
Stop Stray Containers	2s
	11h 31m 10s

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