[FEATURE-REQUEST] Support for more special charcters in column names

Based on the issue https://github.com/vaexio/vaex/issues/1254 I would like to file a feature-request in which the naming of the columns is checked before a hdf5 file is exported. In short, if you have special signs in you columns like [ ] ( ) * and so on, Vaex is able to write the dataframe to the disk in hdf5 format. Vaex will not be able to open it however. Considering that this issue is presented in retrospect, when loading the file, I would prefer to have explicit error-messaging when writing the file to disk.