* changed: _externals, bash: back merge

* fixed: bash/github/init-yq-workflow.sh: missed to detect `jq` existence in case of `https://github.com/kislyuk/yq` implementation

* refactor: README.md: minor refactor

* changed: _externals/tacklelib/bash/tacklelib: merge with the latest changes

* new: bash/github/init-*-workflow.sh: always print the path and version of used tools
* new: bash/github/init-yq-workflow.sh: `ENABLE_YAML_PRINT_ALL` variable to enable all prints altogether
* changed: _externals/tacklelib/bash/tacklelib: merge with the latest changes
* changed: bash/github/init-basic-workflow.sh: code cleanup

* fixed: bash/github/init-diff-workflow.sh: missed to check `patch` existence
* fixed: bash: minor fixup
* changed: bash/github/init-*-workflow.sh: code improvement
* changed: bash: removed `tkl_execute_calls` calls in inclusion scripts, moved `tkl_execute_calls` calls into a condition block in executable scripts
* changed: bash/*/accum-*.sh: moved main script code into a function to be able to test script includes only

* fixed: bash/github/init-yq-workflow.sh: `ENABLE_YAML_PRINT_ALL` didn't print all

* fixed: bash/github/init-yq-workflow.sh: empty print

* new: README.md: tests link

* fixed: bash/github/init-yq-workflow.sh: workaround for `Spurious comment line duplication in yq v4.50.1` : mikefarah/yq#2578
* changed: bash/github/init-yq-workflow.sh: code cleanup
* changed: *.sh: code improvement

* changed: bash/github/init-*.sh: conditional protection from a direct call of an init function
* changed: _externals/tacklelib/bash/tacklelib: merge with the latest changes

* fixed: bash/github/init-yq-workflow.sh: improved workaround for `Spurious comment line duplication in yq v4.50.1`

* changed: *.sh: inverted all not `if` conditions to avoid hidden return code set
* changed: *.sh: include guards improvement
* changed: *.sh: global code improvement and refactor

* fixed: bash/github/accum-rate-limits.sh: json format update

* new: bash/github/init-yq-workflow.sh, accum-*.sh: `YAML_OUTPUT_LR` environment variable to explicitly control yaml output file line return format
* changed: *.sh: exit on first error in `tkl_execute_calls` function
* changed: *.sh: minor code improvement and refactor
* changed: _externals/tacklelib/bash/tacklelib: merge with the latest changes

* changed: bash/github/*.sh: missed changes
* changed: _externals/tacklelib/bash/tacklelib: merge with the latest changes

* changed: *.sh: switched to portable version of shebang line
* changed: _externals/tacklelib/bash/tacklelib: merge with the latest changes

* new: bash/github/init-basic-workflow.sh, bash/github/init-print-workflow.sh, print-*.sh: `CHANGELOG_FILE_LR` environment variable to explicitly control changelog output file line return format
* changed: bash/github/init-yq-workflow.sh: minor improvement

* fixed: bash/github/init-print-workflow.sh, print-*.sh: execution fixup