Add more JsonRawValue encode/decode impls. (#3859) #1528

Job	Run time
Functional Test (MySQL)	41s
Integration Test (ubuntu-latest)	12s
Functional Test (PostgreSQL)	29s
Integration Test (macOS-13)	4s
Integration Test (macOS-latest)	23s
Check	32s
Functional Test (SQLite)	20s
Build (windows-latest)	50s
Build (macOS-13)	36s
Build (ubuntu-latest)	37s
Build (macOS-latest)	27s
	5m 11s

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