Rcounting

This release is something of a bookkeeping release. Since 0.5.1 the text of the automatic ftf post has been greatly improved, the aliases and ignored counters have been updated, and a bug in the calculation of the total counts in no repeating digits has been found and fixed.

The requirements have been bumped to a later version, since praw was nagging about that. That meant a some fiddling around with the pre-commit hooks, since previous versions of `black` are incompatible with the latest version of `click`. It also meant a number of deprecation warnings in the existing code, which have been fixed.

Finally, two workflows have been added for github actions, one of which should deploy new releases automatically to pypi. This release is made partly to test that out.

This release builds on and completes the work that was started in 0.2.3

The program can now update the directory pages fully automatically, with no intermediate files that have to be manually uploaded.

In particular, this means that all tables in the [directory](reddit.com/r/counting/wiki/directory) are updated when `python3 update_thread_directory.py` is called. The threads in the `Top 25 Long Running Side Threads` are sorted by the total number of counts.

Additionally, any **new** threads are added to a table at the bottom of the page. Any threads which have been **archived** or **revived** are also taken care of: the archived threads are moved from the directory to the [archive](reddit.com/r/counting/wiki/directory/archive), and revived threads are moved from the archive to the new threads table. The new threads table is sorted alphabetically.

The list of side threads and their associated rules has been greatly expanded. For each side thread it knows about, the program keeps track of

- What a count in the side thread looks like
- What special rules there are for the side thread
- How to calculate the total number of counts in the side thread

On top of adding new threads, these rules have also been made more specific for many of the existing threads. In particular, the code now handles revivals of existing threads well: that revivals are no longer considering when finding the total number of comments, in keeping with existing practice.

Finding the right comment in new threads has been made easier by the addition of an option to search for the deepest comment on a submission, instead of trying to follow a chain down. This is a slower, but more robust approach to getting to the right place, and should probably be included as a fallback for all the other threads if the program gets stuck. The thread walking code itself has been made more robust by allowing it to move past a deleted comment if it's the only reply.

This release adds functionality to update the directory of side threads found at www.reddit.com/r/counting/wiki/directory. It roughly follows the following steps

1. It gets all submissions to r/counting made within the last six months and finds a link to the parent submission of each submission. It uses this information to construct a chain for each thread from parent submission to child submission
2. It reads each row of each table in the directory and extracts
- Which side thread it is, based on the link to the first thread
- What the previous submission, comment and total count were.
3. It then uses the chain of submissions to find the latest submission of each thread type, and walks down the comments on each submission to the latest one. At each level of comments it goes to the first valid reply based on
- A per-thread rule describing when a count is valid
- A per-thread rule describing what looks like a count (to skip over mid-thread conversations)
4. If the latest submission is not the same as the previous one, it tries to update the total count field

Once it's done all that, it outputs:
- `directory.md`: The updated directory in markdown format

It optionally also outputs the following two files, if they are non-empty:
- `archived_threads.md`: A table of all threads which were in the existing directory, but where no non-archived submissions were found in their chain
- `new_threads.txt`: A list of all submissions made to r/counting which did not match any threads already found in the directory.

The rows corresponding to archived threads are not included in `directory.md`.

In order to do this all of this, a `side_threads` module has been added, which keeps track of the rules for all known side threads. These can be retrieved by calling the `get_side_thread(<name>)` function, and the known side thread names are listed in `side_threads.ini`

A lot of changes have also happened behind the scenes in terms of how the code is structured and information is passed around.