Extract agnostic and electron-main ways of starting application to separate packages (#7259)

* Introduce an agnostic way to start application is the Feature

Signed-off-by: Janne Savolainen <janne.savolainen@live.fi>

* Introduce directory for application-packages

Signed-off-by: Janne Savolainen <janne.savolainen@live.fi>

* Remove non agnostic timeslots from agnostic application

Signed-off-by: Janne Savolainen <janne.savolainen@live.fi>

* Introduce empty package for electron main specific stuff for Application Feature

Signed-off-by: Janne Savolainen <janne.savolainen@live.fi>

* Introduce electron-main specific timeslots

Signed-off-by: Janne Savolainen <janne.savolainen@live.fi>

* Update injectable version

Signed-off-by: Janne Savolainen <janne.savolainen@live.fi>

* Update README

Signed-off-by: Janne Savolainen <janne.savolainen@live.fi>

* Tweak export names to make them easier to import

Signed-off-by: Janne Savolainen <janne.savolainen@live.fi>

* Make starting of application synchronous for Electron main

Signed-off-by: Janne Savolainen <janne.savolainen@live.fi>

* Tweak versions in package jsons

Signed-off-by: Janne Savolainen <janne.savolainen@live.fi>

* Consolidate name of feature file

Signed-off-by: Janne Savolainen <janne.savolainen@live.fi>

---------

Signed-off-by: Janne Savolainen <janne.savolainen@live.fi>

packages/technical-features/feature-core/package.json

@@ -31,6 +31,6 @@
     "test": "jest --coverage --runInBand"
   },
   "peerDependencies": {
-    "@ogre-tools/injectable": "^15.1.1"
+    "@ogre-tools/injectable": "^15.1.2"
   }
 }