dev-libs/tbtools: add new ebuild

tbtools is a cool library and associated set of basic
tools built on top of the lib for thunderbolt / USB4
development and debugging.

Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com>

dev-libs/tbtools/files/tbtools-0.2.0-Cargo.toml-point-to-ebuild-cursive-dep.patch

@@ -0,0 +1,31 @@
+From e2b6e39f8cc45d88dd8107987f05f684e2283d39 Mon Sep 17 00:00:00 2001
+From: Adrian Ratiu <adrian.ratiu@collabora.com>
+Date: Thu, 25 Apr 2024 22:14:02 +0300
+Subject: [PATCH] Cargo.toml: point to ebuild cursive dep
+
+tbtools pulls the latest curive from github which we can't do,
+so we fetch it via SRC_URI and point to the portage extracted
+archive.
+
+Upstream-Status: Not applicable [ebuild change]
+Signed-off-by: Adrian Ratiu <adrian.ratiu@collabora.com>
+---
+ Cargo.toml | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/Cargo.toml b/Cargo.toml
+index c17bd5a..506f4c8 100644
+--- a/Cargo.toml
++++ b/Cargo.toml
+@@ -6,7 +6,7 @@ edition = "2021"
+ [dependencies]
+ ansi_term = "0.12"
+ clap = { version = "4.0", features = ["derive"] }
+-cursive = { version = "0.20.0", default-features = false, features = ["crossterm-backend"] }
++cursive = { path = "../cursive-cursive_core-v0.3.7/cursive", default-features = false, features = ["crossterm-backend"] }
+ is-terminal = "0.4.6"
+ lazy_static = "1.4.0"
+ nix = "0.26.2"
+-- 
+2.43.2
+