add gear renderer module

fix atlas.insert_set

fix atlas.insert for real this time

actually atlas tests were also broken

fix atlas.insert

Backed out changeset f9f71cccb5c3 - Wuzzy is right, the license is incompatible. I'd misread the wording on https://fontlibrary.org/en/font/symbola The terms on the author's site prevent using it with almost all FOSS projects, and even prevent using it in a merge like this. We'll just have to find some other font to improve coverage.

finetune atlas proptest

proptest atlas, find 🐛🐜🦋

Mashup of Symbola and DejaVu Bold so that we aren't missing any characters.

save more of the atlas

add blending to map

move projection matrix into camera

rescue the atlas

add random falling stuff

merge

a bit of cleanup

Allow to move camera around

Detect and handle resize

center camera on land

collapse mapgen back

fix zoom

fix texture initialization

reeneble render from frontend

init gl in frontend interface

make world renderer optional + fmt

move camera into engine

update module structure

add basic map rendering with gl