Expose observable strategy_type #1227

Job	Run time
Build Doxygen Docs	37s
Sanitize - tsan	5m 12s
tests ci-ubuntu-gcc Release	9m 43s
Sanitize - asan	7m 4s
Test RPP as package - ubuntu-latest	58s
tests ci-ubuntu-gcc Debug	9m 59s
Sanitize - lsan	4m 54s
Sanitize - ubsan	5m 2s
benchmarks ci-ubuntu-gcc Release	1m 53s
benchmarks ci-ubuntu-gcc Debug	2m 21s
tests ci-ubuntu-clang Release	10m 12s
tests ci-ubuntu-clang Debug	8m 53s
benchmarks ci-ubuntu-clang Release	1m 49s
benchmarks ci-ubuntu-clang Debug	1m 37s
tests ci-windows Release	6m 31s
tests ci-windows Debug	5m 10s
benchmarks ci-windows Release	2m 27s
benchmarks ci-windows Debug	3m 11s
tests ci-macos Release	5m 32s
tests ci-macos Debug	6m 41s
benchmarks ci-macos Release	3m 0s
benchmarks ci-macos Debug	2m 21s
	1h 45m 7s

Provide feedback