Component rework

detect component.author - fixes #246
normalize empty component.version - fixes #248
add JSDoc - #220
use private properties - #233

Signed-off-by: Jan Kowalleck <jan.kowalleck@gmail.com>

.github/workflows/nodejs.yml

@@ -26,9 +26,11 @@ jobs:
         node-version: 
           # action based on https://github.com/actions/node-versions/releases
           # see also: https://nodejs.org/en/about/releases/
-          - "16"  # active LTS
+          - "17"      # current
+          - "16"      # active LTS
           - "14"
-          - "12"  # lowest supported
+          - "12"
+          - "12.0.0"  # lowest supported
     env:
       REPORTS_ARTIFACT: tests-reports
     steps: