adding bounded arena allocator to renderer

src/vulkan/SpinMutex.zig

@@ -0,0 +1,21 @@
+//! Atomic based spin mutex
+const std = @import("std");
+
+mutex: std.atomic.Mutex = .unlocked,
+
+pub fn lock(self: *@This()) void {
+    if (self.mutex.tryLock()) {
+        @branchHint(.likely);
+        return;
+    }
+
+    while (true) {
+        if (self.mutex.tryLock()) {
+            return;
+        }
+    }
+}
+
+pub fn unlock(self: *@This()) void {
+    self.mutex.unlock();
+}