split pqr coords by line positions when needed

[jamesmkrieger]

Potential fix for #1855

If the line does not have the right fields because of no spaces between coords to maintain pdb-like format, then it splits them by pdb-like positions

[jamesmkrieger]

We could do with tests for this too. Currently, there aren't any for parsePQR at all

[jamesmkrieger]

I haven't merged this branch as I don't have any unit tests yet, but I guess at some point I can make them from the example snippets you gave in the issue.

[jamesmkrieger]

This has all the tests and seems to work well

[jamesmkrieger]

thank you