Alex changes. Adding find functions to vvec, and getCoords2D to CartGrid.

[blenk13]

No description provided.

[sebjameswml]

I'm going to demonstrate the process here by requesting that you just add a space after the function - i.e. after line 93.

[sebjameswml]

Also to demonstrate the process, please correct the spelling of indices ;)

Your process is that you simply make these changes in your code, commit and push the changes and they'll automatically get added to this pull request. Pretty simple.

[sebjameswml]

Happily - vscode seems to have autodetected that the file is indented with 4 spaces. It doesn't seem to have left any extraneous trailing whitespace either.