[TEST CASES] Test upload of data sets with certain particularities

[waltersf]

Notice: bugs related to this issue must be opened in Limonero. But here is a good place to add the task.
Frequently, a user uploads a data set with some weird characteristic that breaks Limonero:

• File name with spaces
• File name with accents
• Content encoded with UTF-8, UTF-16 (not supported by Lemonade)
• Non-tabular data (rows have different number of "columns")
• Tabular data, but strings are not delimited (with quotes, for example)
• Tabular data with line breaks in a delimited string

There is a known bug in Spark when we combine tabular data with line breaks + encoding UTF-8. In this case, the encoding does not work.