[1/15] feat(bisect): add guessing game example

[arxanas]

Stack:

• https://github.com/arxanas/git-branchless/pull/1220
• https://github.com/arxanas/git-branchless/pull/1221
• https://github.com/arxanas/git-branchless/pull/1222
• https://github.com/arxanas/git-branchless/pull/1223
• https://github.com/arxanas/git-branchless/pull/1224
• https://github.com/arxanas/git-branchless/pull/1225
• https://github.com/arxanas/git-branchless/pull/1226
• https://github.com/arxanas/git-branchless/pull/1227
• https://github.com/arxanas/git-branchless/pull/1228
• https://github.com/arxanas/git-branchless/pull/1229
• https://github.com/arxanas/git-branchless/pull/1184
• https://github.com/arxanas/git-branchless/pull/1230
• https://github.com/arxanas/git-branchless/pull/1231
• https://github.com/arxanas/git-branchless/pull/1232
• https://github.com/arxanas/git-branchless/pull/1233

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feat(bisect): add guessing game example

In doing this, I improved some of the comments/assertions on the consumer interface that became apparent when implementing the example.

I found some bugs by hand while testing and proptest also found the same bugs.