Allow to override filesystem project node search

[BrunoRte]

Please check if the PR fulfills these requirements

• [x] The commit message follows our guidelines
• [x] Tests for the changes have been added (for bug fixes / features)
• [x] Docs have been added / updated (for bug fixes / features)

What kind of change does this PR introduce? Feature to add the ability to override the project search of a node

What is the current behavior? Project search is duplicated and does not allow to override search based on file system implementation

What is the new behavior (if this is a feature change)? Project search is now in a dedicated and overridable method

[sonarcloud[bot]]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
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94.1% Coverage
0.0% Duplication