Break 110_private_types into chapters #2047

Job	Run time
List-Courses	3s
Labs (ubuntu-latest)	43s
Labs-Slides	1m 4s
Contrib scripts check	1m 15s
Python scripts black lint check	5s
Slides (static_analysis_via_compiler)	1m 10s
Slides (fundamentals_of_ada)	8m 54s
Slides (gnat_project_facility)	1m 37s
Slides (gnat_studio)	1m 17s
Slides (toolchain)	1m 14s
Slides (gnatsas)	2m 29s
Slides (gnatdas)	2m 11s
Slides (spark_for_ada_programmers)	3m 4s
Slides (advanced_exception_analysis)	1m 7s
Slides (fundamentals_of_ada/opat.txt)	2m 6s
Slides (fundamentals_of_ada/standard_course.txt)	2m 4s
Slides (fundamentals_of_ada/advanced.txt)	1m 57s
Slides (gnat_project_facility/standard_course.txt)	1m 16s
Slides (gnat_studio/course.txt)	1m 20s
Slides (toolchain/gnat_toolchain.txt)	1m 12s
Slides (spark_for_ada_programmers/course.txt)	1m 44s
	37m 52s

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