Add wasm tacle-bench targets

targets/wasm-tacle/kernel/fft/ChangeLog.txt

@@ -0,0 +1,35 @@
+File: fft.c
+Original provenience: DSP-Stone
+
+2016-01-05:
+- Rename fft_1024_13 to fft
+- Add generic TACLeBench header
+- Remove original header from DSP-Stone group
+- Remove duplicate semicolon in bit_reduct
+- Introduce fft_init (initialization of input) 
+  and fft_main (main entry point)
+- Update comments about separate input-data file
+- Add entry-point annotation to fft_main
+- Introduce non-zero return value and make input_data global to reduce impact of
+  compiler optimizations
+- Prefix the functions pin_down, float2frac, convert, exp2f and the global 
+  variables input_data, inputfract, input, twidtable with fft_
+2016-03-02:
+- Fix undefined behavior due to unsequenced modification and access
+- Reformat large arrays using clang-format to 80 columns
+- Apply code formatting with astyle as in the example
+2016-04-25:
+- Remove unnecessary braces in fft_bit_reduct
+- Add void parameter to fft_float2fract
+- Add all forward declarations
+- Move input data into separate file
+- Compute check sum and compare it to expected value in return function
+2016-04-26:
+- Remove unnecessary braces in fft_pin_down
+- Avoid constant propagation through addition with volatile variable 
+  on each element of fft_input_data, fft_twidtable, and fft_input
+- Reorganize functions into logical segments in main source file
+- Replace usage of macros by their expanded values:
+  STORAGE_CLASS => register, TYPE => int
+2017-07-10:
+- Fix loop bounds to avoid buffer overflow.