iOS: initial release of iFreeRDP

This is the initial release of iFreeRDP the FreeRDP iOS client.
Build instructions can be found in docs/README.ios.

cmake/ConfigOptionsiOS.cmake

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+# FreeRDP cmake ios options
+#
+# Copyright 2013 Thinstuff Technologies GmbH
+# Copyright 2013 Martin Fleisz <mfleisz@thinstuff.at>
+#
+# 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.
+
+option(IOS_BUILD_OBJC "Automatically build iOS objective-c code - build type depends on CMAKE_BUILD_TYPE" ON)
+option(IOS_BUILD_OBJC_DEBUG "Create an iOS debug package" ON)
+if (NOT FREERDP_IOS_EXTERNAL_SSL_PATH)
+	set(FREERDP_IOS_EXTERNAL_SSL_PATH "${CMAKE_CURRENT_SOURCE_DIR}/external/openssl")
+endif()
+mark_as_advanced(FREERDP_IOS_EXTERNAL_SSL_PATH)
+