Create .tx/tmp/ temp translation download location

(not actually used, as talking direct to API seems faster)

.gitignore

@@ -6,6 +6,7 @@
 /dist/img/*.svg
 /dist/mapillary-js/
 /node_modules/
+/.tx/tmp/
 npm-debug.log
 package-lock.json
 transifex.auth

.tx/config

@@ -3,11 +3,18 @@ host = https://www.transifex.com
 minimum_perc = 1
 
 [id-editor.core]
+file_filter = .tx/tmp/core/<lang>.yaml
 source_file = data/core.yaml
 source_lang = en
 type = YAML
 
 [id-editor.presets]
+file_filter = .tx/tmp/presets/<lang>.yaml
 source_file = data/presets.yaml
 source_lang = en
 type = YAML
+
+[id-editor.imagery]
+file_filter = .tx/tmp/imagery/<lang>.json
+source_lang = en
+type = KEYVALUEJSON