Big data imports and processing

**Is your feature request related to a problem? Please describe.**
We are using Kepler, but some of our data (the csv of our data) can be more than 500MB, but realistically, we can even expect more than 1 GB of data. This can't be stored in a variable in javascript, especially not as a string (https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/length).

**Describe the solution you'd like**
It would be great if we could have a solution added to processors (https://docs.kepler.gl/docs/api-reference/processors/processors#processgeojson:~:text=%3E%20formatted%20fields-,processCsvData,-Process%20csv%20data) to send in blobs, especially for CSV files.

**Describe alternatives you've considered**
We could divide up the data, but that would result in having separate data points for one source, which is not ideal or usable when working with multiple data sources.