RFR: 8306015: Update sun.security.ssl TLS tests to use SSLContextTemplate or SSLEngineTemplate

[Matthew Donovan]

I refactored tests in the test/jdk/sun/security/ssl directories to use the test template classes.

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Commit messages:
 - 8306015: Update sun.security.ssl TLS tests to use SSLContextTemplate or SSLEngineTemplate

Changes: https://git.openjdk.org/jdk/pull/13495/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=13495&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8306015
  Stats: 2397 lines in 22 files changed: 339 ins; 1724 del; 334 mod
  Patch: https://git.openjdk.org/jdk/pull/13495.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/13495/head:pull/13495

PR: https://git.openjdk.org/jdk/pull/13495