android sink - add retry mechanism
android sink - add retry mechanism

- in some cases subsequent calls to __android_log_write() may result with -EAGAIN error code.
  in such cases spdlog will sleep and try again for number of times defined by
  SPDLOG_ANDROID_LOG_NUM_OF_RETRIES

- defeult SPDLOG_ANDROID_LOG_NUM_OF_RETRIES set to 2 - can be overridden at build time

hunter-packages/spdlog,hunter-packages/spdlog,godbyk/spdlog,godbyk/spdlog,godbyk/spdlog,icylord/spdlog,hunter-packages/spdlog,COMBINE-lab/spdlog,icylord/spdlog,icylord/spdlog,COMBINE-lab/spdlog,COMBINE-lab/spdlog