-move code from templates to ECS side:

*sendEvent - using EventRef (alias to ComponentRef)
 *ListenerCallData now contain entities count and pointer to EntityInfo
 *Remove system_pointer from SystemCallData (use context instead)
 *Register event
-Now all BECS functinality can be used without templates
-clean code

meson.build

@@ -1,4 +1,4 @@
-project('decs', 'd', version : '0.5.0')
+project('decs', 'd', version : '0.1.0')
 
 # Options
 betterC_opt = get_option('betterC')
@@ -78,6 +78,24 @@ decs_dep = declare_dependency(
 # Tests
 if BuildTests_opt
 	subdir('tests')
+
+	executable('d-api-tests',
+		['tests/tests.d'],
+		include_directories : [inc],
+		d_args : args,
+		link_args : link_args,
+		dependencies : decs_dep,
+	)
+
+	if C_API_opt
+		add_languages('c')
+		executable('c-api-tests',
+			['c-api/test.c'],
+			include_directories : [inc],
+			dependencies : decs_dep,
+		)
+	endif 
+
 endif
 
 # Demos