New implementation of license compatibility

[hesa]

These commits provides a new implementation of license compatibility checks for projects (with dependencies). It (hopefully) includes updated doc and tests as well.

The goals of this rewrite have been to:

• increase (ehum) readability and maintainability
• increase speed

For more info, see: README.md and SETTINGS.md

[hesa]

Alias:

• Add new alias file (JSON)

• Updates for new options and features

• Remove old options

• Use f strings instead of +

Arbiter:

• Pass alias file to LicenseCompatibility

• Replace exit call with exception

• Use list comprehensions

• Move loop to separate function

Compatibility:

• Add new compat module

Config:

• Remove old settings, add for new features

Documentation:

• Quote license string in SETTINGS

• Updates for new options and features

• Add link to Konrad's osadl_matrix and matrix.json (README)

Examples:

• Add sample SPDX 2.2 files

Format:

• Add format functions for new functionality

• Fix conditional description inclusion

• Remove unused functions

• Replace printout with exception

• Replace str comparison with not

• Use f-strings

Impl:

• Switch from old to new implementation

• Make more pythonic

License:

• Add new license module

• Move all parse to license_parser

License Compatibiility:

• Raise exceptions on internal errors

• For more info, see: README.md and SETTINGS.md

• Create license objects in constructors

• Use new License class instead

Log:

• Set default log level to DEBUG

Main:

• Replace command line options for new functionality

• Improve help text for verify command

• Make class out of functions

• Remove dead code

Project:

• Add file to read project (flict, SPDX)

• Raise error if SPDX version unsupported

• Add cause when raising exception

• Remove (c) statement from empty init file

• Replace tedious loop construct with comprehensions

• Return value directly (no temp var)

Requirements:

• Correct osadl_matrix version

Return codes:

• Add invalid alias file

Reuse:

• Remove old files

Setup:

• Remove blank lines

Test:

• Add file with commands to check cli

• Update tests for new functionality

• Add (c) and license info

• Add test file with additions to matrix

• Unused files: Remove unused files

• Clean up print statements

• Use proper asserts

• Remove redirect to dev null

Utils:

• Replace getpass with os calls