#3456477: Add schema file to fix errors saving text formatter settings

Related to #3456477

added 3 commits

• 60c2521b...b65aa9a4 - 2 commits from branch project:2.0.x
• 259157b8 - Issue #3456477 by mortona2k, DYdave: Added missing schema file for the filter...

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added 1 commit

• b6aa0a6f - Issue #3456477 by mortona2k, DYdave: Added missing schema file for the filter...

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added 1 commit

• 0685c74c - Issue #3456477 by mortona2k, DYdave: Added missing schema file for the filter...

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merged