[WIP] api-resolver: Add Swift API resolver #1001

Job	Run time
freebsd-arm64	23s
android-intel (x86)	1s
android-arm (arm)	2m 14s
android-intel (x86_64)	1s
android-arm (arm64)	2m 37s
gir	1m 34s
ios-arm64	4m 32s
linux-mips (mips, g++-mips-linux-gnu)	1s
linux-x86	1m 3s
macos-x86_64	1m 25s
linux-x86_64	21s
linux-mips (mipsel, g++-mipsel-linux-gnu)	1s
linux-mips (mips64, g++-mips64-linux-gnuabi64)	1s
linux-mips (mips64el, g++-mips64el-linux-gnuabi64)	1s
qnx-armeabi	3m 39s
windows (amd64_x86)	2m 26s
windows (amd64)	2m 42s
	23m 2s

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