tst_Parser: add some testing rows for floating point data #38

Job	Run time
ubuntu-latest/gcc-no-math	1m 6s
ubuntu-latest/gcc-freestanding	1m 5s
ubuntu-latest/clang	1m 8s
ubuntu-latest/linux-g++	1m 17s
macos-13/clang	1m 40s
	6m 16s

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