Consolidate load functions, add schema for casting, and add CSV options for reading

Cargo.toml

@@ -162,6 +162,7 @@ parquet = { version = "56.2.0" }
 arrow-json = { version = "56.2.0" }
 arrow-buffer = { version = "56.2.0" }
 arrow-schema = { version = "56.2.0" }
+arrow-csv = { version = "56.2.0" }
 arrow-array = { version = "56.2.0", features = ["chrono-tz"] }
 arrow-cast = { version = "56.2.0" }
 arrow-ipc = { version = "56.2.0" }

python/pyproject.toml

@@ -33,7 +33,7 @@ pyvis = ["pyvis >= 0.3.2"]
 networkx = ["networkx >= 2.6.3"]
 export = ["raphtory[pyvis,networkx]"]
 all = ["raphtory[export,plot]"]
-dev = ["docstring_parser >= 0.16", "pandas-stubs", "maturin>=1.8.3", "tox>=4.25"]
+dev = ["docstring_parser >= 0.16", "pandas-stubs", "pyarrow-stubs", "maturin>=1.8.3", "tox>=4.25"]
 test = ["raphtory[all]", "requests >= 2.31.0", "pyjwt[crypto] >= 2.10.1", "pytest >= 8", "pytest-benchmark >= 5.1.0", "polars >= 1.35.2", "fireducks; sys_platform != 'win32' and python_version < '3.14'", "duckdb >= 1.4.2"]
 tox = ["nbmake"]