tests: separate UT and CIT/FIT

[PiotrKorkus]

Current template suggests to place unit tests in /tests directory which is uncommon in SCORE project.
I think all feature repos keep UTs among implementation in /src and /tests is location for Component Integration Tests.

Bugfix

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Description

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Related ticket

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closes [ISSUE-NUMBER] (bugfix ticket)

[github-actions]

License Check Results

🚀 The license check job ran with the Bazel command:

bazel run //:license-check

Status: ⚠️ Needs Review

Click to expand output

[License Check Output]
Extracting Bazel installation...
Starting local Bazel server (8.3.0) and connecting to it...
INFO: Invocation ID: ec3907d3-b951-4a54-8682-703e1e24088c
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
Computing main repo mapping: 
Loading: 
Loading: 0 packages loaded
Loading: 0 packages loaded
    currently loading: 
Analyzing: target //:license-check (1 packages loaded, 0 targets configured)
Analyzing: target //:license-check (1 packages loaded, 0 targets configured)

Analyzing: target //:license-check (77 packages loaded, 9 targets configured)

Analyzing: target //:license-check (149 packages loaded, 2896 targets configured)

Analyzing: target //:license-check (155 packages loaded, 4974 targets configured)

Analyzing: target //:license-check (157 packages loaded, 4980 targets configured)

INFO: Analyzed target //:license-check (158 packages loaded, 6990 targets configured).
INFO: From Generating Dash formatted dependency file ...:
INFO: Successfully converted 2 packages from Cargo.lock to bazel-out/k8-fastbuild/bin/formatted.txt
INFO: Found 1 target...
Target //:license.check.license_check up-to-date:
  bazel-bin/license.check.license_check
  bazel-bin/license.check.license_check.jar
INFO: Elapsed time: 14.476s, Critical Path: 0.37s
INFO: 13 processes: 4 disk cache hit, 9 internal.
INFO: Build completed successfully, 13 total actions
INFO: Running command line: bazel-bin/license.check.license_check ./formatted.txt <args omitted>
usage: org.eclipse.dash.licenses.cli.Main [-batch <int>] [-cd <url>]
       [-confidence <int>] [-ef <url>] [-excludeSources <sources>] [-help] [-lic
       <url>] [-project <shortname>] [-repo <url>] [-review] [-summary <file>]
       [-timeout <seconds>] [-token <token>]

[github-actions]

The created documentation from the pull request is available at: docu-html