Initial commit of the AST viewer
Ignore eclipse files.
Added text editor.
Can open files.
Made editor read only
Fixed opening file
Populates the tree widget with the AST (first basic version)
Added field and value columns.
Better table values.
Expand default up to depth 1
Can show/hide columns
Cosmetics.
Cleaned up the main menu.
Added position column
Started syntax highlighting
Highlighting works.
Made selection yellow.
Cleanup code.
Fixed pylint warnings.
Merge https://github.com/titusjan/astviewer