Initial commit: noxis JVM bytecode obfuscator

Workspace of 9 crates (noxis, noxis-core, noxis-classfile, noxis-analysis,
noxis-passes, noxis-runtime, noxis-jar, noxis-verify, noxis-structure-check).
AGPL-3.0-only license, Rust 2024 edition, unsafe_code denied.

crates/noxis-classfile/src/model/version.rs

@@ -0,0 +1,26 @@
+//! Версия классового файла (major/minor).
+
+/// Версия классового файла.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub struct Version {
+    pub minor: u16,
+    pub major: u16,
+}
+
+impl Version {
+    /// Java 8 (52).
+    pub const JAVA_8: Version = Version {
+        minor: 0,
+        major: 52,
+    };
+    /// Java 17 (61).
+    pub const JAVA_17: Version = Version {
+        minor: 0,
+        major: 61,
+    };
+    /// Java 21 (65).
+    pub const JAVA_21: Version = Version {
+        minor: 0,
+        major: 65,
+    };
+}