Add SQLite Support

[ColinMcNeil]

Add SQLite Support

• Implement a few changes to open .db files with SQLite.

Implementation

• New connection now has a dropdown for SQLite
• If SQLite is selected, only the db file will prompted

[stefpankov]

I'll take a look at this first thing, sorry it took so long to respond, didn't really have the time for this project.

[stefpankov]

I think a better way to do this would be to distinguish between mysql and sqlite connections instead of adding checks for system specific actions, and then having a connection manager decide which connection to use based on what was selected. There are also code style issues but I haven't setup any CI checks yet. I'll try to do some work on this soon, gotta finish this delete functionality first tho.

[ColinMcNeil]

I just did this as a quick proof of concept for Hacktoberfest. I agree it could be better, but you wrote the app in a way that makes it easy to implement.