Allow custom NVD API endpoint

[meiswjn]

Is your feature request related to a problem? Please describe.
It can be useful to proxy the calls to NVD through something like Artifactory. This is different from the "datafeed" type, as it simply proxies the API. It would also allow injecting the API Key in Artifactory directly for everyone.

Describe the solution you'd like
I propose a new parameter "nvdEndpointUrl" that allows overriding the defautl endpoint. The client already supports this, so it should be fairly simple.

Open-Vulnerability-Project/open-vulnerability-clients/src/main/java/io/github/jeremylong/openvulnerability/client/nvd/NvdCveClientBuilder.java

Lines 115 to 118 in c2fb945

	public NvdCveClientBuilder withEndpoint(String endpoint) {
	this.endpoint = endpoint;
	return this;
	}

Describe alternatives you've considered
Using the datafeed requires running another app regularly.

[meiswjn]

Hey @jeremylong,
I think this repo already allows a custom API endpoint, but not the dependency check wrapper, or am I wrong?

Thanks!

[meiswjn]

Resolved by jeremylong/DependencyCheck#6287