Pierre Bourdon fe51de23f1 StringUtil: Add a HexDump function.
Generates a string like the following from a binary blob:

000000: 00 00 04 74 79 70 65 00 09 61 70 70 2d 73 74 61  ...type..app-sta
000010: 72 74                                            rt
2016-06-18 16:37:09 +02:00
..
2016-06-18 16:37:09 +02:00