[WIP] Implement exception handling support

Author: bjorn3

Cargo.lock

@@ -18,6 +18,7 @@ target-lexicon = "0.13"
 gimli = { version = "0.31", default-features = false, features = ["write"] }
 object = { version = "0.36", default-features = false, features = ["std", "read_core", "write", "archive", "coff", "elf", "macho", "pe"] }
 
+eh_frame_experiments = { git = "http://github.com/bjorn3/eh_frame_experiments.git", branch = "update_gimli" }
 indexmap = "2.0.0"
 libloading = { version = "0.8.0", optional = true }
 smallvec = "1.8.1"