Add convert.py that converts between timestamp and version for clusters

[hfu94]

the first commit is copied from https://github.pie.apple.com/jingyu-zhou/corruption/blob/main/convert.py while the second commit is a bug fix.

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• [ ] The PR has a description, explaining both the problem and the solution.
• [ ] The description mentions which forms of testing were done and the testing seems reasonable.
• [ ] Every function/class/actor that was touched is reasonably well documented.

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[foundationdb-ci]

Result of foundationdb-pr-clang-ide on Linux CentOS 7

• Commit ID: b26cb205e018657a2ba648ed64aac243f727d55e
• Duration 0:22:44
• Result: :white_check_mark: SUCCEEDED
• Error: N/A
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr-cluster-tests on Linux CentOS 7

• Commit ID: b26cb205e018657a2ba648ed64aac243f727d55e
• Duration 0:43:05
• Result: :x: FAILED
• Error: Error while executing command: docker build --label "org.foundationdb.version=${FDB_VERSION}" --label "org.foundationdb.build_date=${BUILD_DATE}" --label "org.foundationdb.commit=${COMMIT_SHA}" --progress plain --build-arg FDB_VERSION="${FDB_VERSION}" --build-arg FDB_LIBRARY_VERSIONS="${FDB_VERSION}" --build-arg FDB_WEBSITE="${FDB_WEBSITE}" --tag foundationdb/go-build:${FDB_VERSION}-${COMMIT_SHA} --file Dockerfile --target go-build .. Reason: exit status 1
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)
• Cluster Test Logs zip file of the test logs (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr-clang on Linux CentOS 7

• Commit ID: b26cb205e018657a2ba648ed64aac243f727d55e
• Duration 0:57:05
• Result: :x: FAILED
• Error: Error while executing command: if python3 -m joshua.joshua list --stopped | grep ${ENSEMBLE_ID} | grep -q 'pass=10[0-9][0-9][0-9]'; then echo PASS; else echo FAIL && exit 1; fi. Reason: exit status 1
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)

[foundationdb-ci]

Result of foundationdb-pr on Linux CentOS 7

• Commit ID: b26cb205e018657a2ba648ed64aac243f727d55e
• Duration 1:03:59
• Result: :white_check_mark: SUCCEEDED
• Error: N/A
• Build Log terminal output (available for 30 days)
• Build Workspace zip file of the working directory (available for 30 days)