Support the Case of Matrix{Any} as Data and Vector{Any} as Header

[RoyiAvital]

I have data as a Matrix{Any} (Data of integers, floats and strings) and Vector{Any} (Actually strings). I can create a table from them by tTestData = Tables.table(mTestData; header = vTestHeader);.
Yet I can't create a data frame by dfTMP = DataFrame(mTestData, vTestHeader);.
I can by pass it by dfTMP = DataFrame(tTestData);.

I think if Tables.jl can generate a table from the data so should DataFrames.jl.

[bkamins]

@RoyiAvital Can you please test #2859 before I merge it if it works as you would expect? Thank you!