feat: allow replacement of entire datafile when the schema lines up correctly

[chebbyChefNEQ]

For internal design doc see notion or ping me

What this PR implements

Plan of attack:

• This PR: basic functionality, i.e. when there is no conflict calling this tx should just work
• Next PR: implement more fine-grained conflict resolution
• Potential future PR (when time permits): Allow partial replacement of a datafile. This can be done by "dropping" column indice in a datafile, thereby dropping the column in favor of another

TODO:

• proto definition of the new transaction
• simple rust tests
• test error handling
• PR desc
• python tests
• implement conflict detection

[chebbyChefNEQ]

changed (1), (2), (3) to emoji so the table width align better

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 109 lines in your changes missing coverage. Please review.

Project coverage is 78.77%. Comparing base (a7c5216) to head (c615eb0).

Files with missing lines	Patch %	Lines
rust/lance/src/dataset/transaction.rs	0.00%	109 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3408      +/-   ##
==========================================
- Coverage   78.86%   78.77%   -0.10%     
==========================================
  Files         250      250              
  Lines       91602    91711     +109     
  Branches    91602    91711     +109     
==========================================
  Hits        72244    72244              
- Misses      16395    16503     +108     
- Partials     2963     2964       +1     

Flag	Coverage Δ
unittests	78.77% <0.00%> (-0.10%)	⬇️

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