feat: add backwards compatibility with 0.13.0 v2 datasets

[westonpace]

A breaking change was made to the binary encoding in 0.14.0. v2 was still labeled as experimental at the time. However, a significant number of people have run into this issue and it can be difficult to migrate since it requires recreating the data. This PR adds support for reading the old style.

Note: this will only help reading lance datasets and not lance files. This is because the lance file reader uses the default projection (tries to infer which columns to read from the schema) and a lance dataset uses the field id -> column index mapping in the manifest. The default projection logic has changed and so that approach no longer works.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 34.84163% with 144 lines in your changes missing coverage. Please review.

Project coverage is 78.80%. Comparing base (9e5e96c) to head (0b87848).

Files with missing lines	Patch %	Lines
...ust/lance-encoding/src/encodings/logical/binary.rs	0.00%	106 Missing ⚠️
rust/lance-encoding/src/decoder.rs	66.95%	34 Missing and 4 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2755      +/-   ##
==========================================
- Coverage   78.94%   78.80%   -0.15%     
==========================================
  Files         234      235       +1     
  Lines       72978    73141     +163     
  Branches    72978    73141     +163     
==========================================
+ Hits        57614    57639      +25     
- Misses      12382    12521     +139     
+ Partials     2982     2981       -1     

Flag	Coverage Δ
unittests	78.80% <34.84%> (-0.15%)	⬇️

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[wjones127]

Thanks for doing this. Hopefully this will save us some headaches.