Added new easy way of building TbaMUD in the Visual Studio through the CMake (#127)

* Added new experimental MSVC build way through CMake

* Small build/README.md fix

src/CMakeLists.txt

@@ -0,0 +1,26 @@
+cmake_minimum_required(VERSION 3.27)
+
+# Set the project name
+project(circle)
+
+# Global definitions
+if(MSVC)
+	# using Visual Studio C++
+	add_definitions(-D_CRT_SECURE_NO_WARNINGS -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE)
+endif()
+
+# circle itself
+file(GLOB CIRCLE_SOURCES
+	"*.h"
+	"*.c"
+)
+
+add_executable(circle ${CIRCLE_SOURCES})
+
+if(MSVC)
+	target_link_libraries(circle wsock32.lib)
+	
+	set_target_properties(circle PROPERTIES
+		VS_DEBUGGER_WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}/.."
+	)
+endif()