feat: added oauth based login and registration (#1)

Co-authored-by: Sharang Parnerkar <parnerkarsharang@gmail.com>
Reviewed-on: #1

.gitignore

@@ -0,0 +1,16 @@
+# Generated by Cargo
+# will have compiled files and executables
+/target
+.DS_Store
+
+# These are backup files generated by rustfmt
+**/*.rs.bk
+
+# Environment variables and secrets
+.env
+
+# Logs
+*.log
+
+# Keycloak data
+keycloak/