Full support for geocache types "Waypoint", "Benchmark" and "Other"

[urs-beeli]

Current State

I have imported a GSAK Database file (sqlite.db3) containing caches with the following types:

• Benchmark (G)
• Waymark (Y)
• Other (O)

All three have succesfully been imported (no error message).

When I select each of those caches in the openSAK list, they are shown with the following types in the "detail" view and type column:

• Benchmark shown as type "Benchmark"
• Other shown as "Other"
• Waymark shown as "Mystery"

Also, there is currently no way to filter for these three cache types in the filter dialog.

Proposed Improvement

Add full support for those three cache types.

• import "Waymark" as "Waymark" instead of mapping it to "Mystery"
• add all three cache types to the filter dialog

Expected Benefits

It will allow loss-less import of GSAK databases that use these (admittedly rare) cache types.