Support for FCS files
Hello! I am working in the scientific community with pandas, and I use it especially with fcs files, a more specialized scientific file format. I have been using my own scripts to convert from fcs to csv, but it would be much easier if I could load and export them directly. I was wondering, if I made a pull request that added this support, would it be accepted? If you guys think it wouldn't fit or be worth adding, then I understand.

#### Describe the solution you'd like

I was imagining:

`pandas.read_fcs(filepath_or_buffer)` that returns a new DataFrame
`DataFrame.to_fcs(filepath_or_buffer)` that writes it to the file or buffer.

#### API breaking implications

I don't see how this would break anything, as it is only adding new functions.

#### Describe alternatives you've considered

There are other libraries that support fcs files, but all the ones I looked at seem to be pretty big and don't work well with pandas or other libraries. I feel like it would be useful to have it as part of pandas.

#### Additional context

Again, I am willing to do all of the programming and changes to add this, I just wanted to see if it is a good idea and if it would be accepted.