Pancloud

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* Updated Pipfile.lock.
* Replaced recursion with loop pattern in `LoggingService` `xpoll()` method.
* Added `decode('utf-8')` to base64 decoded JWT to ensure compatibility with `json.loads()`.
* Addressed minor typos in docs.

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* Added `flush()` method to `EventService` class.
* Added `auto_refresh` support to `HTTPClient` `_apply_credentials()` method.
* Removed `auto_retry` feature from `HTTPClient` class.
* Refactored `HTTPClient` class `request()` method keyword argument overrides.
* Removed unused `token_revoke_url` keyword argument.
* Added support for API Explorer Developer Tokens to `Credentials` class.
* Refactored `Credentials` `refresh()` method.

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* Added default URL to `HTTPClient` class.
* Updated docstrings for `StorageAdapter`, `TinyDBStore` and `Credentials` classes.
* Now returning `state` as `str` instead of `UUID` in `get_authorization_url()` method.
* Now unifying display results for -m/-s/--write. For -m you now need an output specifier (-j/-p) to print the response.
* Added `decode_jwt_payload()` method to allow for extracting/using all JWT fields.
* Added -s option to allow for invocation of setter methods. This allows modifying of credential store fields.
* Added credential setters to allow for modifying credentials.
* Updated examples.
* Switched from using `requests` to `HTTPClient` in `Credentials` class.
* Now checking JWT access_token `exp` to determine if refresh if needed.
* Now generating a new `state` each time `get_authorization_url()` is called.
* Added `__repr__` to `Credentials` class with support for masking secrets.
* Updated -E --ack,nack,poll options usage to be accurate.
* `JOB_FAILED` response in `xpoll()` queryStatus now includes errorCode.

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* Added support for custom read/write credentials path.
* `TinyDBStore` `fetch_credential()` now returns `None` instead of empty `str`.
* Fixed bug that caused `_resolve_credential()` to be executed an inefficient number of times.
* Now updating `HTTPClient` headers instead of overriding them which previously broke HTTP persistence.
* Added JMESPath `isotime()` function to `summit.py` which prints epoch.
* Added argument to `EventService` `xpoll()` method to support sleeping between polls.
* Added `PAN_` prefix to envars to avoid name collisions.
* Fixed bug when `R['R1_obj']['LoggingService.query']` is None and allow json=None case with special case of --end -1 which will not set a default end of now.
* Fixed bug that nulled out credentials if an error occurred during a `fetch_tokens()` or `refresh()` operation.
* Now enforcing strict credential resolution. Previous behavior allowed for merging credentials from different providers.
* Added support for caching `refresh_token` to support rolling.
* Added support for writing logs to `summit.py`.
* Switch from using `data` param to `json` param in client/service methods.
* Now defaulting `R1` to `None` so don't send body unless specified.
* Now printing request headers and body at debug level 3 in `summit.py`.
* Added enhancements to `summit.py` for specifying `startTime` and `endTime`.

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* Reversed the `access_token` lookup order in get_credentials() method.
* Added `_resolve_credential()` to `access_token()` property method to support token caching.
* Now comparing passed `access_token` in `refresh()` method to value returned by property method.

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* Added pancloud.adapters to find_packages include list to resolve issue with PyPI package.