feat(openttd): Add openttd dedicated server

[craciunoiuc]

The process is also detailed here: https://discord.com/channels/762976922531528725/992447887864762419/1132392826366337075

You will need to give the elfloader more memory, ideally 1G to start with.

The tests pass successfully:

Booting from ROM...
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===============================================================================
All tests passed (349 assertions in 62 test cases)

The actual server help menu crashes:

Booting from ROM...
Powered by Unikraft Atlas (0.13.1~a7f183b)
[    0.120528] CRIT: [libkvmplat] <traps.c @   84> Unhandled Trap 13 (general protection), error code=0x0
[    0.122549] CRIT: [libkvmplat] <trace.c @   41> RIP: 0000000438b2f8d8 CS: 0008
[    0.124148] CRIT: [libkvmplat] <trace.c @   42> RSP: 000000043d51d120 SS: 0010 EFLAGS: 00010202
[    0.125983] CRIT: [libkvmplat] <trace.c @   44> RAX: 0000000000000000 RBX: 000000043d51d1e0 RCX: 000000043d51d1e0
[    0.128182] CRIT: [libkvmplat] <trace.c @   46> RDX: 0000000000000000 RSI: 0000000438c0f53c RDI: f000ff53f000ff53
[    0.130478] CRIT: [libkvmplat] <trace.c @   48> RBP: 0000000438c0f53c R08: 0000000400231870 R09: 0000000400231870
[    0.132693] CRIT: [libkvmplat] <trace.c @   50> R10: 0000000000000000 R11: 0000000000000246 R12: 0000000438c0f53c
[    0.134927] CRIT: [libkvmplat] <trace.c @   52> R13: f000ff53f000ff53 R14: 000000043d51d1d8 R15: 000000043d51d1e0
[    0.137186] CRIT: [libkvmplat] <traps.c @   90> Crashing