GDB MI adapter should read the list of loaded modules

[xusheng6]

Parse the result of info proc mappings and return its result. A sample output is provided:

(gdb) info proc mappings
process 25443
Mapped address spaces:

          Start Addr           End Addr       Size     Offset  Perms  objfile
      0x555555554000     0x555555555000     0x1000        0x0  r--p   /home/xusheng/debugger_build/debugger/test/binaries/Linux-x86_64/helloworld
      0x555555555000     0x555555556000     0x1000     0x1000  r-xp   /home/xusheng/debugger_build/debugger/test/binaries/Linux-x86_64/helloworld
      0x555555556000     0x555555557000     0x1000     0x2000  r--p   /home/xusheng/debugger_build/debugger/test/binaries/Linux-x86_64/helloworld
      0x555555557000     0x555555558000     0x1000     0x2000  r--p   /home/xusheng/debugger_build/debugger/test/binaries/Linux-x86_64/helloworld
      0x555555558000     0x555555559000     0x1000     0x3000  rw-p   /home/xusheng/debugger_build/debugger/test/binaries/Linux-x86_64/helloworld
      0x7ffff7c00000     0x7ffff7c28000    0x28000        0x0  r--p   /usr/lib/x86_64-linux-gnu/libc.so.6
      0x7ffff7c28000     0x7ffff7db0000   0x188000    0x28000  r-xp   /usr/lib/x86_64-linux-gnu/libc.so.6
      0x7ffff7db0000     0x7ffff7dff000    0x4f000   0x1b0000  r--p   /usr/lib/x86_64-linux-gnu/libc.so.6
      0x7ffff7dff000     0x7ffff7e03000     0x4000   0x1fe000  r--p   /usr/lib/x86_64-linux-gnu/libc.so.6
      0x7ffff7e03000     0x7ffff7e05000     0x2000   0x202000  rw-p   /usr/lib/x86_64-linux-gnu/libc.so.6
      0x7ffff7e05000     0x7ffff7e12000     0xd000        0x0  rw-p   
      0x7ffff7fa0000     0x7ffff7fa3000     0x3000        0x0  rw-p   
      0x7ffff7fbd000     0x7ffff7fbf000     0x2000        0x0  rw-p   
      0x7ffff7fbf000     0x7ffff7fc1000     0x2000        0x0  r--p   [vvar]
      0x7ffff7fc1000     0x7ffff7fc3000     0x2000        0x0  r--p   [vvar_vclock]
      0x7ffff7fc3000     0x7ffff7fc5000     0x2000        0x0  r-xp   [vdso]
      0x7ffff7fc5000     0x7ffff7fc6000     0x1000        0x0  r--p   /usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2
      0x7ffff7fc6000     0x7ffff7ff1000    0x2b000     0x1000  r-xp   /usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2
      0x7ffff7ff1000     0x7ffff7ffb000     0xa000    0x2c000  r--p   /usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2
      0x7ffff7ffb000     0x7ffff7ffd000     0x2000    0x36000  r--p   /usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2
      0x7ffff7ffd000     0x7ffff7fff000     0x2000    0x38000  rw-p   /usr/lib/x86_64-linux-gnu/ld-linux-x86-64.so.2
      0x7ffffffde000     0x7ffffffff000    0x21000        0x0  rw-p   [stack]
  0xffffffffff600000 0xffffffffff601000     0x1000        0x0  --xp   [vsyscall]

When there are multiple object file with the same name, the one that appears first should take the original name, and later ones should have -1, -2 appended to the name so as to differentiate them