Add colored output to most tools; Make mkoverlay more tolerant for missing overlay files; Make psxcdgen_ex emit a warning when no license file is specified

src/Tools/tool_helper/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "tool_helper"
-version = "0.7.0"
+version = "0.8.0"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
@@ -8,6 +8,7 @@ edition = "2021"
 [dependencies]
 byteorder  = "*"
 cdtypes    = {path = "../cdtypes"}
+colored    = "*"
 envmnt     = "*"
 lz4        = "*"
 paste      = "*"