libclc: Add version 12.0.1

[Description][1]:

> libclc is an open source, BSD/MIT dual licensed implementation of the
> library requirements of the OpenCL C programming language, as specified
> by the OpenCL 1.1 Specification.

Building Mesa 3D with OpenCL support (`-Dgallium-opencl="icd"`) requires
LLVM’s libclc.

    Run-time dependency libclc found: NO (tried pkgconfig and cmake)

    ../source/meson.build:849:2: ERROR: Dependency "libclc" not found, tried pkgconfig and cmake

[1]: https://libclc.llvm.org/

libclc.be0

@@ -0,0 +1,31 @@
+#!/usr/bin/env beesh
+
+# BEE_VERSION libclc-12.0.1-0
+
+SRCURL[0]="https://github.com/llvm/llvm-project/releases/download/llvmorg-${PKGVERSION}/libclc-${PKGVERSION}.src.tar.xz"
+
+# PATCHURL+=()
+
+# build_in_sourcedir
+
+# sourcesubdir_append src
+
+#mee_extract() {
+#    bee_extract "${@}"
+#}
+
+#mee_patch() {
+#    bee_patch "${@}"
+#}
+
+#mee_configure() {
+#    bee_configure
+#}
+
+#mee_build() {
+#    start_cmd ninja -v -C ${B} ${BEE_NINJAFLAGS} "${@}"
+#}
+
+#mee_install() {
+#    DESTDIR=${D} start_cmd ninja -C ${B} install "${@}"
+#}