RFR: 7902982: jcstress: Add samples for some mutex algorithms

[Michael Mirwaldt]

I have implemented 3 more samples:
*) the NoAlgorithm sample should show users of JCStress how they can define a critical section in a simple way
*) one sample for the Peterson's algorithm 
*) one sample for the Dekker's algorithm 
I have translated the pseudo code implementations of the English wikipedia articles to Java.
I have also tried out those examples: they compile and they run without any problems.

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Commit messages:
 - Merge branch 'openjdk:master' into master
 - Proposed changes done:
 - Basic mutual exclusion algorithms added

Changes: https://git.openjdk.java.net/jcstress/pull/84/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jcstress&pr=84&range=00
  Issue: https://bugs.openjdk.java.net/browse/CODETOOLS-7902982
  Stats: 262 lines in 3 files changed: 262 ins; 0 del; 0 mod
  Patch: https://git.openjdk.java.net/jcstress/pull/84.diff
  Fetch: git fetch https://git.openjdk.java.net/jcstress pull/84/head:pull/84

PR: https://git.openjdk.java.net/jcstress/pull/84