Move issue template (#2247)

* move issue template
* ignore /.github; + cleanup

.gitignore

@@ -1,21 +1,22 @@
+/.github
+/.idea
+/.vscode
+.cquery
 *.deps
 *.libs
+*.o
+*.lo
 Makefile*
+configure*
 ac*.m4
 config.*
-*.o
 install-sh
 libtool
 ./*.sh
-configure*
-*.lo
 build*
 missing
 autom4te.cache
 mkinstalldirs
-run-tests.php
-idea/*
-.cquery
 tags
-.vscode/*
 compile_commands.json
+run-tests.php