Add SystemC 3.0.0 to CI and cleanup CI scripts #50

Job	Run time
Build (2.3.2, ubuntu, 20.04, g++-9, gcc-9)	2m 29s
Build (2.3.2, ubuntu, 20.04, clang++-9, clang-9, clang-9)	2m 39s
Build (2.3.2, ubuntu, 22.04, g++-11, gcc-11)	2m 23s
Build (2.3.2, ubuntu, 22.04, clang++-11, clang-11, clang-11)	3m 24s
Build (2.3.2, macos, 11, g++, gcc, automake)	5m 29s
Build (2.3.2, macos, 11, clang++, clang, automake)	5m 38s
Build (2.3.2, macos, 12, g++, gcc, automake)	3m 9s
Build (2.3.2, macos, 12, clang++, clang, automake)	2m 56s
Build (2.3.3, ubuntu, 20.04, g++-9, gcc-9)	2m 31s
Build (2.3.3, ubuntu, 20.04, clang++-9, clang-9, clang-9)	3m 7s
Build (2.3.3, ubuntu, 22.04, g++-11, gcc-11)	2m 19s
Build (2.3.3, ubuntu, 22.04, clang++-11, clang-11, clang-11)	3m 8s
Build (2.3.3, macos, 11, g++, gcc, automake)	5m 26s
Build (2.3.3, macos, 11, clang++, clang, automake)	5m 38s
Build (2.3.3, macos, 12, g++, gcc, automake)	2m 57s
Build (2.3.3, macos, 12, clang++, clang, automake)	2m 56s
Build (2.3.4, ubuntu, 20.04, g++-9, gcc-9)	2m 32s
Build (2.3.4, ubuntu, 20.04, clang++-9, clang-9, clang-9)	2m 43s
Build (2.3.4, ubuntu, 22.04, g++-11, gcc-11)	2m 32s
Build (2.3.4, ubuntu, 22.04, clang++-11, clang-11, clang-11)	2m 42s
Build (2.3.4, macos, 11, g++, gcc, automake)	1m 7s
Build (2.3.4, macos, 11, clang++, clang, automake)	1m 7s
Build (2.3.4, macos, 12, g++, gcc, automake)	58s
Build (2.3.4, macos, 12, clang++, clang, automake)	52s
	1h 10m 42s

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