This add support for gziped files, without the need for us to implement
it.

This should add support for gzipped files, MzMLb and Thermo raw files.

The main issue for a fresh build (for some reason I didn't have an issue
locally before removing my target directory) seems to be mzpeaks, but
there is little reason not to update both.

Note that this feauture needs to be called thermorawfilereader. mzdata's
feature is called thermo, but the checks, including the one in the
`mz_read` macro tests for thermorawfilereader. The feature here needs to
match the one tested for in the macro, otherwise rawfiles are detected
as a file type, but the macro still wouldn't support it.

This leaves us with 1 test failure: in our test MGF, PEPMASS is preceded
by CHARGE. mzdata now parses the charge, but implicitly assumes there is
a PEPMASS first. When that isn't the case, there is no precursor ion to
assign the charge value to, resulting in a failure of our unit test.

Work around the bug in mzdata for now, but it might be interesting to,
once we upgrade the version of mzdata, to add a test for this.