This is branch with the new GA CI

It has the .circleci CI stuff as well
for comparison purposes.

.circleci/build-toolchains.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+# create the riscv tools/esp tools binaries
+# passed in as <riscv-tools or esp-tools>
+
+# turn echo on and error on earliest command
+set -ex
+
+# get shared variables
+SCRIPT_DIR="$( cd "$( dirname "$0" )" && pwd )"
+source $SCRIPT_DIR/defaults.sh
+
+if [ ! -d "$HOME/$1-install" ]; then
+    cd $HOME
+
+    # init all submodules including the tools
+    CHIPYARD_DIR="$LOCAL_CHIPYARD_DIR" NPROC=$CI_MAKE_NPROC $LOCAL_CHIPYARD_DIR/scripts/build-toolchains.sh $1
+fi