Adding support for OpenFOAM file format #3164

Job	Run time
Test with MIME database	3m 30s
Test Linux (latest stable Rust)	2m 23s
Output Regression Test	4m 5s
Actionlint	1m 15s
Test x86_64-unknown-linux-gnu	3m 10s
Rustfmt	1m 20s
Test x86_64-apple-darwin	4m 13s
Check Linux Packaging	3m 46s
Test x86_64-pc-windows-msvc	4m 13s
Test aarch64-unknown-linux-gnu	5m 6s
Test aarch64-apple-darwin	3m 20s
Test x86_64-unknown-linux-musl	3m 34s
	39m 55s

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