Pass kwargs through to JSON3.read

[bluesmoon]

This change allows passing keyword arguments from jsontable to JSON3.read. This is useful, for example, if the JSON is in the form of jsonlines rather than a single JSON object.

[codecov[bot]]

Codecov Report

All modified lines are covered by tests :white_check_mark:

Comparison is base (239f4f2) 91.57% compared to head (9ce70c4) 91.57%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #24 +/- ## ======================================= Coverage 91.57% 91.57% ======================================= Files 1 1 Lines 95 95 ======================================= Hits 87 87 Misses 8 8 ``` | [Files](https://app.codecov.io/gh/JuliaData/JSONTables.jl/pull/24?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaData) | Coverage Δ | | |---|---|---| | [src/JSONTables.jl](https://app.codecov.io/gh/JuliaData/JSONTables.jl/pull/24?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=JuliaData#diff-c3JjL0pTT05UYWJsZXMuamw=) | `91.57% <100.00%> (ø)` | |

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