Nvdlib

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**Bugfixes**
- Merged 30. Added a check if the generator hits 403 rate limit error, instead of breaking the entire generator. Delays twice as long to ensure another 403 isn't hit.

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**Enhancements**
- Merged 24. Added the new functions for `searchCVE_V2` and `searchCPE_V2`. They have the same arguments as their respective counterparts (`searchCVE` and `searchCPE`), but are defined as a generator instead. Yields after each CVE conversion from the response. This is useful for systems with resource constraints.

nthunk single handedly pushed these features. Thank you.

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**Bugfixes**

- Merged 22. When using a datetime object in parameters like `pubEndDate`, NVDLib will now replace the `+` character used to denote the time zone with `%2B` in the string of parameters, preventing a 404 error and per the NVD API documentation. Normally this is done automatically within requests, but NVDLib passes the parameters as a string rather than a dictionary natively within requests.

**Enhancements**
- Merged 23. Set the optional parameters in `searchCVE` and `searchCPE` to `None` instead of `False`. Helps out with linters and type assignment mismatches.

Big thanks to ntnunk for submitting the PRs for these changes.

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**Bugfixes**

- Fixed parsing of CPEs names to allow special characters with CPE names to function correctly.
- Fixed PyTest data, tests are passing now.

**Enhancements**

- Added newer parameters to `nvdlib.searchCVE()`.
- noRejected - Filter out CVEs that have a status of rejected.
- versionEnd / versionEndType / versionStart / versionStartType - Used with virtualMatchString to provide filters based on versions within CPE names

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**Bugfixes**

- Fixed the location of `baseSeverity`. The `baseSeverity` attribute had its location changed and caused lookups with a CVSS version 2 score to fail.

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- Overhauled NVDLib to utilize the new version of the NVD API (version 2).
- `nvdlib.getCVE()` no longer exists and is now combined into `nvdlib.searchCVE()` using the `cvdId` parameter.
- `nvdlib.searchCPE()` no longer has the `cves` parameter to pass CVEs.
- New parameters for `nvdlib.searchCVE()`
- For a full list of changes, see https://nvdlib.com/en/latest/v1/changesv1.html

Happy Halloween! 🎃