build: add gitignore

Author: mig8447

.gitignore

@@ -0,0 +1,17 @@
+**/.DS_Store
+*-debug.log
+*-error.log
+/.idea
+/.nyc_output
+/dist
+/lib
+/tmp
+/yarn.lock
+node_modules
+oclif.lock
+oclif.manifest.json
+.env
+**/wallet
+/generated/*
+!/generated/.gitkeep*
+/templates/**/*/package-lock.json