RESTRUCTURING 1

- change formats to have their own folders with mod + include files + anything they want
- change format list to be defined in formats.rs instead of in each format
- move utils to their respective formats
- some minor code changes in some formats

src/formats/mtk_pkg_old/include.rs

@@ -0,0 +1,33 @@
+use crate::utils::common;
+use binrw::BinRead;
+
+pub static KEY: u32 = 0x94102909; //09 29 10 94
+// first 4 bytes of header and content are additionally XORed, they have different masks although only differ by half a byte
+pub static HEADER_XOR_MASK: u32 = 0x04BE7C75; //75 7C BE 04
+pub static CONTENT_XOR_MASK: u32 = 0x04BE7C72; //72 7C BE 04
+
+pub static HEADER_SIZE: usize = 0x98;
+
+#[derive(BinRead)]
+pub struct Header {
+    pub vendor_magic_bytes: [u8; 4],
+    _mtk_magic: [u8; 8],
+    version_bytes: [u8; 68],
+	pub file_size: u32,
+    _flags: u32,
+    product_name_bytes: [u8; 32],
+    _digest: [u8; 32],
+}
+impl Header {
+    pub fn vendor_magic(&self) -> String {
+        common::string_from_bytes(&self.vendor_magic_bytes)
+    }
+    pub fn version(&self) -> String {
+        common::string_from_bytes(&self.version_bytes)
+    }
+    pub fn product_name(&self) -> String {
+        common::string_from_bytes(&self.product_name_bytes)
+    }
+
+}
+