json: Use JSON maps instead of string hashes for objects. #3278

Job	Run time
linux rpm fedora	3m 57s
dpdk gcc (ubuntu-24.04)	5s
linux deb no dpdk	5m 0s
libreswan (ubuntu-24.04)	5s
build oss-fuzz fuzzers	2m 54s
osx clang --disable-ssl	1m 33s
clang-analyze-cache	17s
linux gcc --disable-ssl	2m 54s
linux clang --disable-ssl	2m 49s
linux gcc c99	4m 26s
linux clang c99	3m 27s
linux gcc test	8m 40s
linux clang address,undefined test	16m 32s
linux gcc test --enable-shared	12m 14s
linux clang test --enable-shared	11m 18s
linux gcc check check-dpdk dpdk	19m 8s
linux clang check check-dpdk dpdk	19m 0s
linux gcc test -ljemalloc	9m 18s
linux clang test -ljemalloc	9m 11s
linux gcc --enable-afxdp	2m 27s
linux clang --enable-afxdp	2m 48s
linux gcc dpdk --enable-shared	3m 59s
linux clang dpdk --enable-shared	4m 1s
linux gcc dpdk-shared	3m 25s
linux clang dpdk-shared	2m 53s
linux gcc dpdk-shared --enable-shared	3m 32s
linux clang dpdk-shared --enable-shared	3m 58s
linux gcc m32 --disable-ssl	2m 39s
linux gcc check-ovsdb-cluster	6m 45s
linux gcc check-kernel -100	12m 9s
linux gcc check-kernel 100-	17m 10s
linux clang address,undefined check-kernel -100	12m 59s
linux clang address,undefined check-kernel 100-	19m 39s
linux gcc check-offloads -100	9m 35s
linux gcc check-offloads 100-	12m 2s
linux gcc dpdk check-system-userspace	12m 34s
linux clang address,undefined dpdk check-system-userspace	16m 19s
linux gcc dpdk check-system-tso	12m 11s
linux gcc dpdk check-afxdp	12m 12s
clang-analyze	11m 3s
	5h 17m 8s

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