Add method to get filepointer's basename

[delucchi-cmu]

Change Description

Add a method to get the basename of a filepointer object. e.g. find catalog_info.json from /path/to/catalogs/ps1/catalog_info.json

Code Quality

• I have read the Contribution Guide
• My code follows the code style of this project
• My code builds (or compiles) cleanly without any errors or warnings
• My code contains relevant comments and necessary documentation

[github-actions]

Before	After	Ratio	Method
[a95bb4d]	[282b1e6]
702±3ms	701±5ms	1	benchmarks.time_test_cone_filter_multiple_order
172±10ms	157±1ms	0.92	benchmarks.time_test_alignment_even_sky

Click here to view all benchmarks.

[codecov]

Codecov Report

Merging #132 (eb92c48) into main (ea8bc17) will not change coverage.
Report is 12 commits behind head on main.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##              main      #132   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           45        45           
  Lines         1363      1365    +2     
=========================================
+ Hits          1363      1365    +2     

Files Changed	Coverage Δ
src/hipscat/io/file_io/__init__.py	100.00% <ø> (ø)
src/hipscat/io/file_io/file_io.py	100.00% <ø> (ø)
src/hipscat/io/file_io/file_pointer.py	100.00% <100.00%> (ø)

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[github-actions]

Before	After	Ratio	Method
[a95bb4d]	[dbcfde1]
215±2ms	213±0.5ms	0.99	benchmarks.time_test_alignment_even_sky
794±7ms	774±3ms	0.97	benchmarks.time_test_cone_filter_multiple_order

Click here to view all benchmarks.