Milestone #1 - Tiny Clear Elf on ARM, MIPS, PowerPC, and S390x

[eliminmax]

Implement tiny-clear-elf binaries for the 6 or 7* remaining architectures planned. tiny-clear-elf binaries are defined as follows:

• ELF executables with properly-structured ELF header and Phdr, but no section header, made in the vi-like hed hex editor
• less than 256 bytes, assuming that's possible within the constraints of the architecture, otherwise as small as possible.
• only makes 2 Linux syscalls, one of which writes "␛[H␛[J␛3J" to STDOUT, and the other exiting with error code 0. No extra functionality, and no parsing of arguments

* armhf and armel are technically the same architecture, but armhf can take advantage built-in support for hardware floating point calculations, which not all arm processors have. Debian has separate repository architectures for the two, and I took my list of architectures to target from the list of architectures that the current stable release supports. The same binary will be used for both in this project, because I don't see how the write and exit syscalls would need to deal with floats.

• Kickoff meeting
• Week 1 work
  • armel/armhf implementation
  • aarch64 implementation
• Week 2 work
  • ppc64el implementation
  • s390x implementation
• Week 3 work
  • mips64el implementation
  • mipsel implementation
• Demo
  • run binaries with QEMU and binfmt_misc