Calculate tags and version automatically (#100)

Signed-off-by: Andrei Kvapil <kvapss@gmail.com>

hack/prepare_release.sh

@@ -1,25 +0,0 @@
-#!/bin/sh
-set -e
-
-if [ -e $1 ]; then
-  echo "Please pass version in the first argument"
-  echo "Example: $0 0.2.0"
-  exit 1
-fi
-
-version=$1
-talos_version=$(awk '/^version:/ {print $2}' packages/core/installer/images/talos/profiles/installer.yaml)
-
-set -x
-
-sed -i "/^TAG / s|=.*|= v${version}|" \
-  packages/apps/http-cache/Makefile \
-  packages/apps/kubernetes/Makefile \
-  packages/core/installer/Makefile \
-  packages/system/dashboard/Makefile
-
-sed -i "/^VERSION / s|=.*|= ${version}|" \
-  packages/core/Makefile \
-  packages/system/Makefile
-make -C packages/core fix-chartnames
-make -C packages/system fix-chartnames