Organize public and internal parts of memory management (#1539)

* Introduced new 'jmem.h' for public part.
 * Removed obsolete headers

JerryScript-DCO-1.0-Signed-off-by: László Langó llango.u-szeged@partner.samsung.com

tests/unit/test-heap.c

@@ -13,7 +13,14 @@
  * limitations under the License.
  */
 
-#include "jmem-allocator.h"
+#include <stdbool.h>
+#include <stdint.h>
+#include <string.h>
+
+#include "jmem.h"
+
+#define JMEM_ALLOCATOR_INTERNAL
+#include "jmem-allocator-internal.h"
 
 #include "test-common.h"
 

tests/unit/test-poolman.c

@@ -17,10 +17,14 @@
  * Unit test for pool manager.
  */
 
-#define JERRY_MEM_POOL_INTERNAL
+#include <stdbool.h>
+#include <stdint.h>
+#include <string.h>
 
-#include "jmem-allocator.h"
-#include "jmem-poolman.h"
+#include "jmem.h"
+
+#define JMEM_ALLOCATOR_INTERNAL
+#include "jmem-allocator-internal.h"
 
 #include "test-common.h"