feat: Add package EABase (#178)

EABase is a small set of header files that define platform-independent data types and platform feature macros.
And it is depending on EASTL which is widely used in game developing

log: Add file package/e/eastl/xmake.lua to support package eabase

packages/e/eabase/xmake.lua

@@ -0,0 +1,21 @@
+package("eabase")
+
+    set_homepage("https://github.com/electronicarts/EABase")
+    set_description("EABase is a small set of header files that define platform-independent data types and platform feature macros.")
+    set_license("BSD-3-Clause")
+
+    add_urls("https://github.com/electronicarts/EABase/archive/$(version).tar.gz")
+    add_versions("2.09.06", "981f922441617152b841585c0fc0bd205bd898c758016fa4985599a63c5a6e16")
+
+    add_deps("cmake")
+
+    on_install("windows", "linux", "macosx", function (package)
+        import("package.tools.cmake").install(package)
+        os.cp("include/Common/EABase", package:installdir("include"))
+    end)
+
+
+    on_test(function (package)
+        assert(package:has_cxxfuncs("EA_LIMITS_DIGITS_U(int)",
+            {configs = {languages = "c++17"}, includes = "EABase/eabase.h"}))
+    end)