build core, basic and go variants and add template

template/nvim/luasnippets/all.lua

@@ -0,0 +1,11 @@
+---
+--- Add your lua snippets here. Rename this file to match the file type your
+--- snippets are supposed to be availlable for instead of 'all'.
+---
+
+return {
+  parse(
+    { trig = 'my-snippet', name = 'My Snippet' },
+    'The quick brown ${1:fox} jumps over the lazy ${2:dog,cat,elephant}'
+  ),
+}