feat: add terrain-core, tma, and unitdat crates with parsing functionality

- Introduced `terrain-core` crate for loading and processing terrain mesh data.
- Added `tma` crate for parsing mission files, including footer and object records.
- Created `unitdat` crate for reading unit data files with validation of structure.
- Implemented error handling and tests for all new crates.
- Documented object registry format and rendering pipeline in specifications.

1 files changed, 10 insertions, 0 deletions

diff --git a/crates/tma/Cargo.toml b/crates/tma/Cargo.toml
new file mode 100644
index 0000000..99360c3
--- /dev/null
+++ b/crates/tma/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "tma"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+encoding_rs = "0.8"
+
+[dev-dependencies]
+common = { path = "../common" }