Fileinfo: parse .pdata section from PE(+) files

It looks like PE(+) files may contain `.pdata` section with info on functions in the binary:
```
The Function Table (interpreted .pdata section contents)
vma: BeginAddress EndAddress UnwindData
000000014001d000: 0000000140001010 0000000140001043 000000014001937c
000000014001d00c: 0000000140001050 00000001400010be 0000000140019bbc
000000014001d018: 00000001400010c0 0000000140001113 0000000140018fd0
...
```
It is referenced by the exception table entry:
```
The Data Directory
...
Entry 3 000000000001d000 00000f90 Exception Directory [.pdata]
```

It would be useful to parse it.

Specification: https://msdn.microsoft.com/en-us/library/windows/desktop/ms680547(v=vs.85).aspx#the_.pdata_section

Example file: [ack.zip](https://github.com/avast-tl/retdec/files/1784785/ack.zip)

Also, search the PE specification for other similar structures that we are not currently handling.

Start with the PE Fileinfo parser and the Exception Directory described in the linked Microsoft specification; inspect ack.zip as the example input. Done means .pdata function-table records are parsed for PE(+) files, with other similar unhandled PE structures considered as requested.

Written by the indexing model from the issue text.