Openwithida

Changes:

- The default behavior now depends on the installed IDA version:
- For IDA < 8.2, the chosen IDA variant depends on the executable's bitness.
- For IDA 8.2, IDA64 will be used for all files except those with the _.idb_ extension.
- For IDA 8.3+, IDA64 will be used for all files.
- The option `--use-ida32` has been added to the installer, resorting to the original bitness-based behavior.

New feature:

- If a user has upgraded IDA and completely uninstalled the previous version, _OpenWithIDA_ will now point to the newer version.

New features:

- Prompt user for IDA folder in case it wasn't automatically found
- Add option to install _OpenWithIDA_ as an extended verb (i.e. you have to hold Shift to display it)
- Add option to uninstall the _OpenWithIDA_ context menu extension

New features:

- Add access key 'w' for easier mouseless usage
- Add Python 2 and 3.0 support

Bug fixes:

- Create the `shell` registry key if it doesn't exist.
- Pass strings instead of _WindowsPath_ objects to `subprocess.Popen`.
This unintentionally made the required Python version 3.8 (instead of the intended 3.6).

First release