chore: add setup scripts

scripts/setup.ps1

@@ -0,0 +1,3 @@
+#!/usr/bin/env pwsh
+
+git config --local commit.template .gitmessage

scripts/setup.sh

@@ -0,0 +1,3 @@
+#!/usr/bin/bash
+
+git config --local commit.template .gitmessage