Native Base64 Encoding increases upload speed by factor 4..10
- Added: Support for native encode module to use base64 as transfer encoding (speed up the transfer by factor 4..10) - suggested by MickaelGuilloux on GitHub #32
- Changed: Progress bar appearance (shades_classic theme of cli-progress v1.4 is used)
- Bugfix: By uploading multiple files the transfer-encoder functions where uploaded each time