Example files for each sub-reader

[lukaspie]

• summarize SPECS readers into one folder
• update missing examples for all readers
• update docs to reflect new structure
• small modifications to SPECS XY reader

[github-actions]

Pull Request Test Coverage Report for Build 8939686183

Details

• 2 of 2 (100.0%) changed or added relevant lines in 1 file are covered.
• 160 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-0.2%) to 67.226%

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Files with Coverage Reduction	New Missed Lines	%
pynxtools_xps/file_parser.py	6	83.05%
pynxtools_xps/xy/xy_specs.py	154	12.89%

Totals
Change from base Build 8937112469:	-0.2%
Covered Lines:	2283
Relevant Lines:	3396

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💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 9061793761

Details

• 26 of 53 (49.06%) changed or added relevant lines in 5 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage decreased (-0.1%) to 67.098%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
pynxtools_xps/specs/xy/xy_specs.py	19	46	41.3%

Totals
Change from base Build 9060665920:	-0.1%
Covered Lines:	2282
Relevant Lines:	3401

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💛 - Coveralls

[RubelMozumder]

Looks all good to me. I had a small confusion with the app def. if you fix that or reason that, immediately I can approve this PR.