Resolve #3525354 "02 security advisory preparation"

Add a Requirements block to the README documentation; Incorporate a .gitignore file; Closes #3525354

added 3 commits

• 34514b97 - 1 commit from branch project:1.0.x
• 2fbbc5d6 - Add a Requirements block to the README documentation.
• 45ddf397 - Incorporate a .gitignore file.

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merged