adding command pool base

src/vulkan/CommandPool.zig

@@ -0,0 +1,37 @@
+const std = @import("std");
+const vk = @import("vulkan");
+
+const VkError = @import("error_set.zig").VkError;
+const Device = @import("Device.zig");
+
+const Self = @This();
+pub const ObjectType: vk.ObjectType = .command_pool;
+
+owner: *Device,
+flags: vk.CommandPoolCreateFlags,
+queue_family_index: u32,
+
+vtable: *const VTable,
+
+pub const VTable = struct {
+    destroy: *const fn (*Self, std.mem.Allocator) void,
+    reset: *const fn (*Self, vk.CommandPoolResetFlags) VkError!void,
+};
+
+pub fn init(device: *Device, allocator: std.mem.Allocator, info: *const vk.CommandPoolCreateInfo) VkError!Self {
+    _ = allocator;
+    return .{
+        .owner = device,
+        .flags = info.flags,
+        .queue_family_index = info.queue_family_index,
+        .vtable = undefined,
+    };
+}
+
+pub inline fn destroy(self: *Self, allocator: std.mem.Allocator) void {
+    self.vtable.destroy(self, allocator);
+}
+
+pub inline fn reset(self: *Self, flags: vk.CommandPoolResetFlags) VkError!void {
+    try self.vtable.reset(self, flags);
+}