new(userspace/libsinsp): support plugins in sinsp-example. #7058

Job	Run time
build-libs-linux-amd64-static 🎃	23m 33s
build-shared-libs-linux-amd64 🧐	5m 5s
build-libs-emscripten 🧐	5m 3s
build-libs-linux-amd64 😁 (system_deps)	6m 43s
build-libs-others-amd64 😨 (windows-latest, MultiThreaded)	5m 26s
build-shared-libs-macos-amd64 😨	1m 48s
build-libs-linux-amd64 😁 (bundled_deps)	16m 19s
run-e2e-tests-amd64 (system_deps)	9m 10s
build-libs-others-amd64 😨 (windows-latest, MultiThreadedDLL)	5m 41s
build-libs-linux-amd64 😁 (system_deps_minimal)	5m 8s
run-e2e-tests-amd64 (bundled_deps)	18m 25s
build-libs-others-amd64 😨 (macos-latest)	2m 32s
build-libs-linux-amd64 😁 (sanitizers)	15m 16s
test-libs-static (bundled_deps)	13m 27s
run-e2e-tests-amd64 (asan)	20m 27s
build-libs-linux-amd64 😁 (zig)	26m 22s
build-libs-linux-arm64 😁 (system_deps)	11m 19s
build-libs-linux-arm64 😁 (bundled_deps)	24m 52s
build-libs-linux-arm64 😁 (system_deps_minimal)	10m 3s
build-libs-linux-arm64 😁 (sanitizers)	30m 29s
build-libs-linux-arm64 😁 (zig)	42m 2s
	4h 59m 10s

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