NGSOK-1512 Support passing of truststore to DelegatingSSLSocketFactory

[giggsoff]

Description of PR

Ability to provide fs.s3a.ssl.truststore and related options to not touch system truststore for s3a access.

How was this patch tested?

Not tested for 3.4.3.1 version (tested with 3.3.6).

For code changes:

• Does the title or this PR starts with the corresponding JIRA issue id (e.g. 'HADOOP-17799. Your PR title ...')?
• Object storage: have the integration tests been executed and the endpoint declared according to the connector-specific documentation?
• If adding new dependencies to the code, are these dependencies licensed in a way that is compatible for inclusion under ASF 2.0?
• If applicable, have you updated the LICENSE, LICENSE-binary, NOTICE-binary files?