[cmake] Update CPMUtil (#4123)

Notable changes

- Single cpmfile
- version/min_version/git_version have been fixed and replaced with
  version and min_version
- Docs rewrite
- Legacy options are gone
- Fixed update/version commands
- Added patch creation functionality

Signed-off-by: crueter <crueter@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/4123
Reviewed-by: Lizzie <lizzie@eden-emu.dev>
Reviewed-by: MaranBr <maranbr@eden-emu.dev>

tools/cpm/package/reset.sh

@@ -0,0 +1,56 @@
+#!/bin/sh -e
+
+# SPDX-FileCopyrightText: Copyright 2026 crueter
+# SPDX-License-Identifier: LGPL-3.0-or-later
+
+# shellcheck disable=SC1091
+. "$SCRIPTS"/../common.sh
+
+usage() {
+	cat <<EOF
+Usage: cpmutil.sh package reset [a|--all] [PACKAGE]...
+
+Reset a locally fetched package to its original state.
+This is most useful for dropping any changes you've made.
+
+EOF
+
+	exit 0
+}
+
+while :; do
+	case "$1" in
+	-h | --help) usage ;;
+	-a | --all) ALL=1 ;;
+	"$0") break ;;
+	"") break ;;
+	*) packages="$packages $1" ;;
+	esac
+
+	shift
+done
+
+[ "$ALL" != 1 ] || packages="${LIBS:-$packages}"
+[ -n "$packages" ] || usage
+
+for PACKAGE in $packages; do
+	unset JSON
+	export PACKAGE
+
+	# shellcheck disable=SC1091
+	. "$SCRIPTS"/vars.sh
+
+	if [ "$CI" = true ]; then
+		dir="${CPM_SOURCE_CACHE}/${LOWER_PACKAGE}"
+	else
+		dir="${CPM_SOURCE_CACHE}/${LOWER_PACKAGE}/${KEY}"
+	fi
+
+	echo "-- Removing $dir"
+	rm -rf "$dir"
+
+	# shellcheck disable=SC1091
+	. "$SCRIPTS"/util/fetch.sh
+
+	fetch_package
+done