Include float.h for FLT_MAX (!2) · Merge requests · SoundTouch library / soundtouch

This fixes following error on gcc/clang:

BPMDetect.cpp:474:20: error: use of undeclared identifier 'FLT_MAX'
    float minval = FLT_MAX;   // arbitrary large number
                   ^

Tested on:

Microsoft Visual C++ 2017 Microsoft(R) C/C++ Optimizing Compiler Version 19.14.26430 for x86
Apple LLVM version 9.1.0 (clang-902.0.39.2)
gcc (Ubuntu 5.4.0-6ubuntu1~16.04.6) 5.4.0 20160609

Include float.h for FLT_MAX