first attempt at strip_text_x ha adjustment for facets

[jwhendy]

For review. Current status:

• hard codes info.ha as e.g. 'right' for testing purposes
• accepts 'left', 'center', and 'right' text args as well as float (matched approach here)
• anchor (justification) variable added and set to match info.ha (if str passed), or is 'left' if ha < 0.5 else 'right'