Refactoring test scripts

_nuget needs some RepoRoots

get the cats in line (d)

spaces

Fix Linux build breaks

add execution permissions

Pick up #999 Finish refactoring test scripts

remove auth

Reorder publishing to work!

fix rebase errors

fix more rebase errors

small fixes

scripts/test/setup/setup-tests.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+#
+# Copyright (c) .NET Foundation and contributors. All rights reserved.
+# Licensed under the MIT license. See LICENSE file in the project root for full license information.
+#
+
+set -e
+
+SOURCE="${BASH_SOURCE[0]}"
+while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink
+  DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
+  SOURCE="$(readlink "$SOURCE")"
+  [[ "$SOURCE" != /* ]] && SOURCE="$DIR/$SOURCE" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
+done
+
+source "$DIR/../../common/_common.sh"
+
+header "Test Setup: Restoring Prerequisites"
+"$RepoRoot/scripts/test/restore-test-prerequisites.sh"
+
+header "Test Setup: Building Prerequisites"
+"$RepoRoot/scripts/test/build-test-prerequisites.sh"