Jc

- Add YAML output option with `-y`
- Add `top -b` standard and streaming parsers tested on linux
- Add `plugin_parser_count`, `standard_parser_count`, and `streaming_parser_count`
keys to `jc -a` output
- Add `is_compatible` function to the `utils` module
- Fix `pip-show` parser for packages with a multi-line license field
- Fix ASCII Table parser for cases where centered headers cause mis-aligned fields

- Add `chage --list` command parser tested on linux
- Add `git log` command streaming parser
- Fix `git log` standard parser for corner-cases where hash values are in messages
- Fix `df` command parser for rare instances when a newline is found at the end
- Allow jc to pip install on unsupported python version 3.6
- Fix `asciitable-m` parser to skip some rows that contain column separator
characters in cell data. A warning message will be printed to STDERR
unless `-q` or `quiet=True` is used.

- Fix `update-alternatives --query` parser for cases where `slaves` are not present
- Fix UnicodeEncodeError on some systems where LANG=C is set and unicode
characters are in the output
- Update `history` parser: do not drop non-ASCII characters if the system
is configured for UTF-8 encoding
- Enhance "magic syntax" to always use UTF-8 encoding

- Add `git log` command parser
- Add `update-alternatives --query` parser
- Add `update-alternatives --get-selections` parser
- Fix key/value and ini parsers to allow duplicate keys
- Fix yaml file parser for files including timestamp objects
- Update `xrandr` parser: add a 'rotation' field
- Fix failing tests by moving template files
- Add python interpreter version and path to -v and -a output

- Add `pidstat` command parser tested on linux
- Add `pidstat` command streaming parser tested on linux
- Add `mpstat` command parser tested on linux
- Add `mpstat` command streaming parser tested on linux
- Add single-line ASCII and Unicode table parser
- Add multi-line ASCII and Unicode table parser
- Add documentation option to `parser_info()` and `all_parser_info()`

- Fix date parser to ensure AM/PM period string is always uppercase