Support go to file_query:row:column syntax in Find File, Go To Line dialogs and CLI

Deals slightly differently with zed-industries/community#557
Deals with zed-industries/community#1184

    Fixes Go To Line not respecting column number when navigating to a place
    Changes a line-row separator from , to : to show it more uniformly with other tools
    Adjusts file finder dialogue to allow file_query:row:column syntax and opens the buffer at the lines given
    Extends CLI with file_path:row_column syntax and opens these files similarly