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/android_ota_payload/include.rs

@@ -0,0 +1,9 @@
+use binrw::{BinRead};
+
+#[derive(BinRead)]
+pub struct Header {
+    _magic_bytes: [u8; 4], //CrAU
+    pub file_format_version: u64,
+    pub manifest_size: u64,
+    pub metadata_signature_size: u32,
+}