Ton-client-py

- Minimum `Python` version increased to `3.7`;
- `AppObject`, `AppSigningBox`, `AppEncryptionBox`, `AppDebotBrowser` interfaces implementation.
Can be found in `tonclient.objects`.
Now you can create child class from any of `AppObject` classes, implement required methods,
create instance of resulting class and pass it's `dispatcher` method instead of raw `callback`
for SDK methods which require `AppObject` as callback.
<br/>
More info and usage examples can be found in `test/[test_crypto|test_async|test_debot]`

- Binaries updated to `1.17.0`;
- Changes `1.16.1` (https://github.com/tonlabs/TON-SDK/blob/master/CHANGELOG.md#1161--2021-06-16);
- Changes `1.17.0` (https://github.com/tonlabs/TON-SDK/blob/master/CHANGELOG.md#1170--2021-06-21);

- Binaries updated to `1.16.0`;
- Changes `1.15.0` (https://github.com/tonlabs/TON-SDK/blob/master/CHANGELOG.md#1150--2021-05-18);
- Changes `1.16.0` (https://github.com/tonlabs/TON-SDK/blob/master/CHANGELOG.md#1160--2021-05-25);

- Binaries updated to `1.14.1`;
- Changes `1.14.0` (https://github.com/tonlabs/TON-SDK/blob/master/CHANGELOG.md#1140--2021-04-28);
- Changes `1.14.1` (https://github.com/tonlabs/TON-SDK/blob/master/CHANGELOG.md#1141--2021-04-29);

- Binaries updated to `1.13.0`;
- Changes `1.13.0` (https://github.com/tonlabs/TON-SDK/blob/master/CHANGELOG.md#1130--2021-04-23);
- Bug fixed in `types.DecodedOutput.from_dict` method;
- Modules' types rechecked

- Binaries updated to `1.12.0`;
- Changes `1.12.0` (https://github.com/tonlabs/TON-SDK/blob/master/CHANGELOG.md#1120--2021-04-01)
_**Has breaking changes in DeBot module**_