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/roku/include.rs

@@ -0,0 +1,49 @@
+use binrw::BinRead;
+
+pub static FILE_KEY: [u8; 16] = [
+        0x2A, 0x54, 0xA5, 0x30, 0xE0, 0x09, 0xA3, 0xDC,
+        0x03, 0xFB, 0xC3, 0x5E, 0x23, 0xA2, 0xC1, 0x0D,
+];
+
+pub static FILE_IV: [u8; 16] = [0x00; 16];
+
+#[derive(BinRead)]
+pub struct ImageHeader {
+    _empty: [u8; 8],
+    _magic_bytes: [u8; 8], //imgARMcC
+    _target_bytes: [u8; 4],
+    _platform_id: [u8; 4],
+    pub image_type: u32,
+    pub size1: u32,
+    _size2: u32,
+    pub data_start_offset: u32,
+    _data_link_address: u32,
+    _data_entry_point_offset: u32,
+    pub flags: u32,
+    _timestamp: u32,
+    _build_host: [u8; 4],
+    _unk: [u8; 4],
+    _rest_of_header: [u8; 192],
+}
+impl ImageHeader {
+    pub fn is_encrypted(&self) -> bool {
+        self.flags == 0x80
+    }
+    pub fn type_string(&self) -> &str {
+        if self.image_type == 0xa {
+            return "initfs"
+        } else if self.image_type == 0x18 {
+            return "uImage"
+        } else if self.image_type == 0x3 {
+            return "loader"
+        } else if self.image_type == 0xd {
+            return "app_cramfs"
+        } else if self.image_type == 0x6 {
+            return "Customization Package"
+        } else if self.image_type == 0xe {
+            return "firmware_blob"
+        } else {
+            return "unknown"
+        }
+    }
+}