Small memory leak about pyproj

[djhoese]

I'm not sure how I feel about considering this a "leak". If I'm understanding it correctly this is pyproj initializing some state (yes, a database connection, but still). While I'm surprised by the size, who knows what sqlite is doing to pre-load the PROJ database. While it might improve import time to move the database connection/context to be created on first use, this would make execution time inconsistent. This makes performance checks and benchmarking more difficult as you'd have to "warm up" pyproj/PROJ before running anything.

That said, I don't have a good understanding of low-level pyproj, but this is just my initial feeling about this request.

[snowman2]

#1419 addresses this.

[skinkie]

@snowman2 thanks for the effort.