Fix
* Move catalog manager into catalog sub-pkg ([`fb6b084`](https://github.com/OpenPecha/openpecha-toolkit/commit/fb6b08442982c0a8aa0e49c862261ffed702d9b4))
* Download corpus cli ([`69b82e6`](https://github.com/OpenPecha/openpecha-toolkit/commit/69b82e61b926fa25cc71ecc151caed2c0b4f7eef))
* Get base of all pechas ([`878a31b`](https://github.com/OpenPecha/openpecha-toolkit/commit/878a31b87c3c4998ec30fce2c1db60443a26c737))