File api for non configuration files & monaco file language support#411

Matthbo wants to merge 18 commits intomasterfrankframework/flow:masterfrom

issue/361-rework-monaco-implementation-editor-endpoints-to-support-more-than-configuration-filesfrankframework/flow:issue/361-rework-monaco-implementation-editor-endpoints-to-support-more-than-configuration-filesCopy head branch name to clipboard