Add terminfo test set

The terminfo files are taken from my local device, and the assertions
are generated from the current terminfo implementation but have been
partially manually checked for correctness. As such, this is mainly a
barrier against potential implementation drift in the future, as
unlikely as it may be.

Author: tecosaur

test/choosetests.jl

@@ -19,7 +19,7 @@ const TESTNAMES = [
         "mpfr", "broadcast", "complex",
         "floatapprox", "stdlib", "reflection", "regex", "float16",
         "combinatorics", "sysinfo", "env", "rounding", "ranges", "mod2pi",
-        "euler", "show", "client",
+        "euler", "show", "client", "terminfo",
         "errorshow", "sets", "goto", "llvmcall", "llvmcall2", "ryu",
         "some", "meta", "stacktraces", "docs", "gc",
         "misc", "threads", "stress", "binaryplatforms", "atexit",