Update roof shape field to add missing wiki suggestions

[Shrinks99]

Description, Motivation & Context

The OSM wiki has more suggested roof_shape options than are listed, all with excellent icons by @mxdanger. This PR adds all the roof shapes with icons to the schema in preperation for #1589

Links and data

Relevant OSM Wiki links:

• https://wiki.openstreetmap.org/wiki/Key:roof:shape

Relevant tag usage stats:

• https://taginfo.openstreetmap.org/keys/roof:shape#values
• https://taghistory.raifer.tech/#***/roof%3Ashape/

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[Shrinks99]

Checked in the editor, everything shows up as expected!

[matkoniecz]

Pinging @tordans as he merged some mergeable PRs I found.

I got confused a bit that you cannot type in roof shape field to filter possible entries but it is not really within responsibility of this PR.

[Shrinks99]

@matkoniecz Pretty sure all that is needed to change that behaviour is change "customValues": true

I also don't think customValues should be true in this case to help standardize roof type data... Rather, the combobox input should still be keyboard searchable when it's false

[tyrasd]

confirmed that the additional options are documented and recently often used