feat: support custom output path

[pnadolny13]

Related to slack thread https://meltano.slack.com/archives/CMN8HELB0/p1679141123085079

I see that theres several ways to define the naming conventions of the output files but I dont see a way to set a custom output path directory. The person in slack was confused by the output_path_prefix setting because they expected it to allow a custom output path. Ultimately changing variants to use the destination_path with the hotgluexyz variant solved their problem. Either:

• document how to pass a custom path with the current configurations
• implement a way to provide a custom path

[amotl]

Hi Pat,

I've just submitted a patch which may improve the situation.

• feat: Add output_path property, and streamline implementation #50

With kind regards,
Andreas.

[amotl]

On this topic, thank you for merging GH-50. That was quick. GH-54 adds the missing test cases, which should have accompanied the patch, but were forgotten.

[edgarrmondragon]

I think we can now close this