Release engineering improvements (#1844)

* version set from package.json and release bin names

* support direnv virtualenv

* versioned PlatformIO environment

* matrix support for parralel CI

* gather artifacts

* release on tagging

* minor scripts formatting

requirements.txt

@@ -0,0 +1,54 @@
+#
+# This file is autogenerated by pip-compile
+# To update, run:
+#
+#    pip-compile
+#
+aiofiles==0.6.0
+    # via platformio
+ajsonrpc==1.1.0
+    # via platformio
+bottle==0.12.19
+    # via platformio
+certifi==2020.12.5
+    # via requests
+chardet==4.0.0
+    # via requests
+click==7.1.2
+    # via
+    #   platformio
+    #   uvicorn
+colorama==0.4.4
+    # via platformio
+h11==0.12.0
+    # via
+    #   uvicorn
+    #   wsproto
+idna==2.10
+    # via requests
+ifaddr==0.1.7
+    # via zeroconf
+marshmallow==3.11.1
+    # via platformio
+platformio==5.1.1
+    # via -r requirements.in
+pyelftools==0.27
+    # via platformio
+pyserial==3.5
+    # via platformio
+requests==2.25.1
+    # via platformio
+semantic-version==2.8.5
+    # via platformio
+starlette==0.14.2
+    # via platformio
+tabulate==0.8.9
+    # via platformio
+urllib3==1.26.4
+    # via requests
+uvicorn==0.13.4
+    # via platformio
+wsproto==1.0.0
+    # via platformio
+zeroconf==0.28.8
+    # via platformio