Add FreeRTOS-Plus directory with new directory structure so it matches the FreeRTOS directory.

FreeRTOS-Plus/Source/FreeRTOS-Plus-Trace/readme.txt

@@ -0,0 +1,53 @@
+
+FreeRTOS+Trace Trace Recorder Library
+-------------------------------------
+Percepio AB
+www.percepio.com
+
+This directory contains the core trace recorder library used by FreeRTOS+Trace v2.3. 
+
+Ready-to-run demonstrations projects are found at www.percepio.com.
+
+For information on how to integrate the recorder library in your FreeRTOS build, see
+the FreeRTOS+Trace User Manual, section 2.
+
+For information on how to upload the trace data from your target system RAM to 
+FreeRTOS+Trace, see "debugger trace upload.txt"
+
+NOTE: This trace recorder library requires FreeRTOS v7.3.0 or later.
+
+Files included
+--------------
+- trcConfig.h               - The recorder's configuration file, check this!
+- trcUser.c / trcUser.h     - The main API towards the application (trcUser.h in the only include necessary).
+- trcKernel.c / trcKernel.h - Internal routines for storing kernel events.
+- trcBase.c / trcBase.h     - Internal routines for manipulating the data structures and calculating timestamps.
+- trcPort.c / trcPort.h     - The port layer, abstracting the hardware (mainly the timer used for timestamping).
+- trcHooks.h				- The interface between FreeRTOS and the recorder, containing trace macro defintions.
+- trcTypes.h				- Type definitions used.
+
+Hardware Timer Ports
+--------------------
+This release contains hardware timer ports for the following hardware architectures:
+
+- ARM Cortex M3/M4 (all brands, such as Atmel SAM3/SAM4, NXP 17xx, 18xx, 43xx, STM32, Freescale Kinetis, ...)
+- Atmel AT91SAM7x
+- Atmel AT32UC3 (AVR32)
+- Renesas RX600 (e.g., RX62N)
+- Microchip dsPIC/PIC24
+
+These are defined in trcPort.h. This also contains several "unofficial" ports, provided by external contributors.
+By unofficial, it means that they are not yet verified by Percepio AB. Please refer to trcPort.h for detailed information. 
+If you use an unofficial port and beleive it is incorrect, please let us know!
+
+In case your MCU is not yet supported directly, developing a new port is quite easy, just a matter of defining a few macros
+according to your specific MCU. See trcPort.h for further information.
+
+In case you have any questions, do not hesitate to contact support@percepio.com
+
+Percepio AB
+Köpmangatan 1A
+72215 Västerås
+Sweden
+
+www.percepio.com