add hash-library (#1615)

* add hash-library

* Update xmake.lua

packages/h/hash-library/xmake.lua

@@ -0,0 +1,40 @@
+package("hash-library")
+    set_homepage("https://create.stephan-brumme.com/hash-library/")
+    set_description("Portable C++ hashing library")
+    set_license("zlib")
+
+    add_urls("https://github.com/stbrumme/hash-library.git")
+    add_versions("2021.09.29", "d389d18112bcf7e4786ec5e8723f3658a7f433d7")
+
+    on_install(function (package)
+        local configs = {}
+        io.writefile("xmake.lua", [[
+            add_rules("mode.release", "mode.debug")
+            target("hash-library")
+               set_kind("$(kind)")
+               add_files("*.cpp")
+               add_headerfiles("(*.h)")
+               if is_plat("windows") and is_kind("shared") then
+                    add_rules("utils.symbols.export_all", {export_classes = true})
+               end
+        ]])
+        if package:config("shared") then
+            configs.kind = "shared"
+        end
+        for _, sourcefile in ipairs(os.files("*.cpp")) do
+            io.replace(sourcefile, "#include <endian.h>", "", {plain = true})
+        end
+        import("package.tools.xmake").install(package, configs)
+    end)
+
+    on_test(function (package)
+        assert(package:check_cxxsnippets({test = [[
+            #include <string>
+            #include <iostream>
+            void test() {
+                SHA1 sha1;
+                std::string myHash  = sha1("Hello World");
+                std::cout << myHash << std::endl;
+            }
+        ]]}, {configs = {languages = "c++11"}, includes = {"sha1.h"}}))
+    end)