Louis/pythonpath-fix (#73)

* Re-enable flaky tests

* Fix #58

With promises.

* Remove redundant Python strings

* Reorder stream execution

* Cleanup code

* Fix venv path

app-root-path was incorrectly resolving the project path when the
package is installed directly in Node-RED.

* Remove app-root-path package

* Remove PythonShell package

PythonShell packages functionality is no longer required.

* Update dedent-js to be dev dependency

Given that all of the Python snippets are correctly indented anyway in
snippets.js, having dedent-js as a dependency is no longer required.
Kept it as a dev-dependency though for unit tests.

* Update packages

* Fix #58 (again)

This fix is better than the previous one.

Author: louislefevre

package-lock.json

@@ -35,14 +35,12 @@
     "postinstall": "npm run venv"
   },
   "dependencies": {
-    "app-root-path": "^3.0.0",
     "async-mutex": "^0.3.1",
-    "dedent-js": "^1.0.1",
-    "python-shell": "^3.0.0",
     "string.prototype.replaceall": "^1.0.5"
   },
   "devDependencies": {
     "chai": "^4.3.4",
+    "dedent-js": "^1.0.1",
     "eslint": "^7.29.0",
     "eslint-config-google": "^0.14.0",
     "mocha": "^9.0.3",
@@ -69,7 +67,7 @@
       "hadamard-gate": "quantum/nodes/hadamard-gate/hadamard-gate.js",
       "cnot-gate": "quantum/nodes/cnot-gate/cnot-gate.js",
       "toffoli-gate": "quantum/nodes/toffoli-gate/toffoli-gate.js",
-      "controlled-u-gate":"quantum/nodes/controlled-u-gate/controlled-u-gate.js",
+      "controlled-u-gate": "quantum/nodes/controlled-u-gate/controlled-u-gate.js",
       "measure": "quantum/nodes/measure/measure.js",
       "local-simulator": "quantum/nodes/local-simulator/local-simulator.js",
       "ibm-quantum-system": "quantum/nodes/ibm-quantum-system/ibm-quantum-system.js",