BUFR functions

This is the list of all the functions related to Bufr data.

`append()`	Appends the given data to file
`bufr_picker()`	Filters `Bufr` data with complex structure
`cleanfile()`	Removes unwanted header padding from GRIB and `Bufr` files
`file()`	Returns a file handler for the specified filename
`obsfilter()`	Filters `Bufr` data
`read()`	Reads the given file and returns a variable of the appropriate type
`retrieve()`	Retrieves data from MARS
`thermo_bufr()`	Generates thermodynamical profile from `Bufr`
`write()`	Writes/appends the given data to file