[WIP] libvterm

[dnakov]

[hanpham32]

Hey @dnakov, could you pls provide the commands for installation, build, and run for the example here? Would like to take a look into testing this PR

I'm having trouble building the new zig build you updated.

Full error log below:

/home/han/.cache/zig/p/zg-0.14.1-oGqU3IQ_tALZIiBN026_NTaPJqU-Upm8P_C7QED2Rzm8/build.zig:46:10: error: no field named 'target' in struct 'Build.ExecutableOptions'
        .target = b.graph.host,
         ^~~~~~
/usr/local/zig/lib/std/Build.zig:770:31: note: struct declared here
pub const ExecutableOptions = struct {
                              ^~~~~~
referenced by:
    runBuild__anon_111308: /usr/local/zig/lib/std/Build.zig:2214:33
    dependencyInner__anon_105218: /usr/local/zig/lib/std/Build.zig:2195:29
    12 reference(s) hidden; use '-freference-trace=14' to see all references
build.zig:205:10: error: no field named 'root_source_file' in struct 'Build.TestOptions'
        .root_source_file = b.path("test.zig"),
         ^~~~~~~~~~~~~~~~
/usr/local/zig/lib/std/Build.zig:855:25: note: struct declared here
pub const TestOptions = struct {