Share the web-service machine glue between gfhome and gfcloud

Extract the shared-config identity overrides and the forgectrl-routed
ForgectrlMachine from gfhome into an installed module (python3-ffmachine);
gfhome imports it instead of carrying its own copy, so the coming gfcloud
daemon builds the same machine the same way.

meta-forgefirm/recipes-forgefirm/ffmachine/python3-ffmachine.bb

@@ -0,0 +1,21 @@
+DESCRIPTION = "Shared ForgeFIRM web-service hardware-machine glue (gfhome + gfcloud)"
+HOMEPAGE = "https://github.com/ScottW514/forgefirm"
+
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/MIT;md5=0835ade698e0bcf8506ecda2f7b4f302"
+
+PV = "0.1.0"
+
+SRC_URI = "file://ffmachine.py"
+
+S = "${WORKDIR}"
+
+inherit python3-dir
+
+do_install() {
+    install -Dm 0644 ${WORKDIR}/ffmachine.py ${D}${PYTHON_SITEPACKAGES_DIR}/ffmachine.py
+}
+
+FILES:${PN} += "${PYTHON_SITEPACKAGES_DIR}/ffmachine.py"
+
+RDEPENDS:${PN} += "python3-core python3-gfhardware python3-gfutilities python3-requests"