Openpecha

Fix
* **utils:** Download private pecha ([`5ce7113`](https://github.com/OpenPecha/Toolkit/commit/5ce71136969d328be01e92f56ce793d1c5e2f992))
* **storage:** Generate auth remote url ([`5172865`](https://github.com/OpenPecha/Toolkit/commit/5172865c010cda2759fd302c76c83a3bb247b5b4))

Fix
* **core/pecha:** Add base_names_list prop to pecha ([`58e7135`](https://github.com/OpenPecha/Toolkit/commit/58e7135f08afab18faffdea8cce0d19964636abf))
* **core/pecha:** Pecha publish method accepts branch ([`5c599ca`](https://github.com/OpenPecha/Toolkit/commit/5c599ca3b1ed6cba85b02595f96c0d2d35050cde))

Fix
* **core/pecha:** Overwriting bases in metedata ([`f9033eb`](https://github.com/OpenPecha/Toolkit/commit/f9033eb066268047fe2e146d58f685d91ba00038))

Fix
* **core/pecha:** Make arg optional ([`67fd90b`](https://github.com/OpenPecha/Toolkit/commit/67fd90bffeab0a44abb0ff488998867c560be08c))

Feature
* **elan:** Initial implementation of elan serializer ([`3f8cd41`](https://github.com/OpenPecha/Toolkit/commit/3f8cd41a115e8b9cff667e0e94b2dc02a8b6032f))

Fix
* **elan:** Get media_url from TranscriptionTimeSpanLayer ([`d060818`](https://github.com/OpenPecha/Toolkit/commit/d060818109304ef418e42b0d9cc24d91f017b039))
* **pecha:** Create meta.bases only if it doesn't exist ([`38e8d7e`](https://github.com/OpenPecha/Toolkit/commit/38e8d7e0b02a4cf1479a763d9e1badae6a1795f4))

Feature
* **otranscribe:** Initial implementation for oTranscribe formatter ([`13e2c83`](https://github.com/OpenPecha/Toolkit/commit/13e2c8307fd6f9df9011ba2023119515602fa97b))
* Add TranscriptionTimeSpanLayer ([`096f8ff`](https://github.com/OpenPecha/Toolkit/commit/096f8ff2dcff8ffa21960dff69fc1057b82c78fa))
* Add a Layer for transcription ([`454a304`](https://github.com/OpenPecha/Toolkit/commit/454a3043ff22065c615643baeb4a5dae48203185))
* Add annotation for transcription ([`ee669a3`](https://github.com/OpenPecha/Toolkit/commit/ee669a3685c1bd6cb8ae0268d2d8784047ff4c96))

Fix
* **otranscribe:** Take directory as an input path ([`9e1e9b5`](https://github.com/OpenPecha/Toolkit/commit/9e1e9b50202373ca958f3c0ee41a194c7400298c))
* **core/pecha:** Pass layerEum obj instead of str ([`bba5d1f`](https://github.com/OpenPecha/Toolkit/commit/bba5d1f9a34d39436862a9b5a57b4ccad17a9762))
* **otranscribe:** Add test data for oTranscribe formatter ([`acd9a22`](https://github.com/OpenPecha/Toolkit/commit/acd9a22a1dc5c8ef6e6dd03434cc74a6facdf225))
* Read_layers_file file, get_base_metadata, about ([`14200c8`](https://github.com/OpenPecha/Toolkit/commit/14200c800a437f28bcb08cb8b7a06c077cc81bd3))