Implement Esa Event Service (EES)

The Esa Event Service can be used to trigger ESP SA (ESA) events such as
acquire or expire. The incoming events are forwarded to the hydra kernel
interface for processing.

src/charon-tkm/build_tests.gpr

@@ -2,13 +2,13 @@ with "build_common";
 
 project Build_Tests is
 
-   for Languages use ("C");
-   for Source_Dirs use ("src/tkm", "tests");
+   for Languages use ("Ada", "C");
+   for Source_Dirs use ("src/tkm", "src/ees", "tests");
    for Main use ("test_runner");
    for Object_Dir use Build_Common.Obj_Dir;
 
    package Compiler is
-      for Default_Switches ("c") use Build_Common.Compiler_Switches;
+      for Default_Switches ("c") use Build_Common.C_Compiler_Switches;
    end Compiler;
 
 end Build_Tests;