Powerdir10k

This is a fork which implements changes which I like in my current zsh theme:

• Adds support for named directory expansion (and arbitrary zsh directory prompt sequences)
• Adds support a customizable separator in between git up/down status
• Adds support for more permission information on the current directory

Breaking changes in this fork:

I replace POWERLEVEL9K_DIR_PATH_ABSOLUTE with POWERLEVEL9K_DIR_PROMPT_SEQUENCE. To use absolute paths in your prompt, you must use the variable like so:

# you can also specify any prompt sequence
# as descrbed in `man zshmisc'
POWERLEVEL9K_DIR_PROMPT_SEQUENCE='%/'