Show section name as symbol name in fileinfo relocation tables

Right now, fileinfo relocation tables show an empty symbol name if the relocation is referring to a section. This also causes some issues when it gets passed to the decoder.

Example from readelf:

Relocation section '.rel.text' at offset 0x2e54 contains 118 entries:
Offset Info Type Sym.Value Sym. Name
00000774 00000105 R_MIPS_HI16 00000000 .text
00000778 00000106 R_MIPS_LO16 00000000 .text
00000e90 00000405 R_MIPS_HI16 00000000 .rodata
00000e9c 00000406 R_MIPS_LO16 00000000 .rodata
00000f48 00000405 R_MIPS_HI16 00000000 .rodata
00000f50 00000406 R_MIPS_LO16 00000000 .rodata
00000ffc 00000105 R_MIPS_HI16 00000000 .text
00001008 00000106 R_MIPS_LO16 00000000 .text
00001110 00000705 R_MIPS_HI16 00000000 .bss
0000111c 00000706 R_MIPS_LO16 00000000 .bss
00001114 00001f05 R_MIPS_HI16 00000e90 abcd_1
00001124 00001f06 R_MIPS_LO16 00000e90 abcd_1

RetDec fileinfo output:

i type offset symbol name symValue addend calcValue

0 5 0x0774 0 0 0
1 6 0x0778 0 0 0
2 5 0x0e90 0 0 0
3 6 0x0e9c 0 0 0
4 5 0x0f48 0 0 0
5 6 0x0f50 0 0 0
6 5 0x0ffc 0 0 0
7 6 0x1008 0 0 0
8 5 0x1110 0 0 0
9 6 0x111c 0 0 0
10 5 0x1114 abcd_1 3728 0 0
11 6 0x1124 abcd_1 3728 0 3728