Log warnings instead of throwing exceptions for missing params while filling out the VersionInfo defaults

[koksyn]

Version notes 2.3.1

• logs only warnings instead of throwing exception, when cannot fulfill default values for <VersionInfo>
  (no configuration data required by the formula), see Issue #213. All missing fields will be fulfilled by dummy values like on the list:

  project.version: 1.0.0
  project.organization.name: Default organization
  project.inceptionYear: 2020
  project.name: Java Project
  project.artifactId: java-project
  project.description: A Java project.
  outfile: app.exe

Closes #213

[lukaszlenart]

👏 Looks good to me :)

[lukaszlenart]

@koksyn do you plan additional work on this PR?

[koksyn]

@koksyn do you plan additional work on this PR?

Only one change regarding buildYear inside one Unit test (to make it deterministic).