Meson wrap file for beast, remove git submodule

subprojects/beast

@@ -1 +0,0 @@
-Subproject commit 9d23bec2bc523223a377582302bd28d04cb514ed

subprojects/beast.wrap

@@ -0,0 +1,7 @@
+[wrap-git]
+url = https://github.com/boostorg/beast.git
+revision = a332f55d63b89b7b178a70b56d82315d7957fe90
+patch_directory = beast
+
+[provide]
+dependency_names = beast-1.79.0

subprojects/packagefiles/beast/meson.build

@@ -0,0 +1,16 @@
+project('beast', 'cpp',
+  version: '1.79.0',
+  meson_version: '>=0.49.2',
+  default_options: ['buildtype=release', 'cpp_std=c++11', 'b_ndebug=if-release'],
+  license: 'BSL-1.0',
+)
+
+boost_dep = dependency('boost', version: '>=1.78.0',
+  modules: ['coroutine', 'filesystem', 'system', 'thread'],
+)
+
+public_incl = include_directories('include')
+beast_dep = declare_dependency(
+  include_directories: public_incl,
+  dependencies: [boost_dep],
+)