Merge pull request #7 from libmir/add-syscalls-5.15

Add close_range, faccessat2, process_madvise, epoll_pwait2, mount_setattr, quotactl_fd, landlock_create_ruleset, landlock_add_rule, landlock_restrict_self, memfd_secret, process_mrelease

Merge pull request #6 from libmir/update-and-add-riscv

Added new syscalls and added RISCV32 & RISCV64

Merge pull request #5 from libmir/newconf

update dub, meson, use *.di extension

add meson.build

Update README.md