MLECO-2682: CMake and source refactoring.

MLECO-2930: logging macros were extracted from hal.h and used separately around the code.

MLECO-2931: arm_math lib introduced, cmsis-dsp removed from top level linkage.

MLECO-2915: platform related post-build steps.

Change-Id: Id718884e22f262a5c070ded3f3f5d4b048820147
Signed-off-by: alexander <alexander.efremov@arm.com>
diff --git a/source/log/CMakeLists.txt b/source/log/CMakeLists.txt
new file mode 100644
index 0000000..1de737e
--- /dev/null
+++ b/source/log/CMakeLists.txt
@@ -0,0 +1,43 @@
+#----------------------------------------------------------------------------
+#  Copyright (c) 2022 Arm Limited. All rights reserved.
+#  SPDX-License-Identifier: Apache-2.0
+#
+#  Licensed under the Apache License, Version 2.0 (the "License");
+#  you may not use this file except in compliance with the License.
+#  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+#  Unless required by applicable law or agreed to in writing, software
+#  distributed under the License is distributed on an "AS IS" BASIS,
+#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#  See the License for the specific language governing permissions and
+#  limitations under the License.
+#----------------------------------------------------------------------------
+
+#######################################################
+# Header-only logging definitions as an interface lib.#
+#######################################################
+cmake_minimum_required(VERSION 3.15.6)
+
+set(BSP_LOGGING_TARGET log)
+
+project(${BSP_LOGGING_TARGET}
+    DESCRIPTION     "Generic logging formatting header-only interface lib."
+    LANGUAGES       C)
+
+add_library(${BSP_LOGGING_TARGET} INTERFACE)
+
+if (DEFINED LOG_LEVEL)
+    message(STATUS "Setting log level to ${LOG_LEVEL}")
+    target_compile_definitions(${BSP_LOGGING_TARGET}
+        INTERFACE
+        LOG_LEVEL=${LOG_LEVEL})
+endif()
+
+target_include_directories(${BSP_LOGGING_TARGET} INTERFACE include)
+
+message(STATUS "*******************************************************")
+message(STATUS "Library                                : " ${BSP_LOGGING_TARGET})
+message(STATUS "CMAKE_SYSTEM_PROCESSOR                 : " ${CMAKE_SYSTEM_PROCESSOR})
+message(STATUS "*******************************************************")