New threadpool

- removed some whitespace noise.
 - cleaned up CMakeLists.txt
 - reintegrated task_manager.c into thread-pool.c
 - cleaned up some unnecessary code

Co-authored-by: Cedric Roux <cedric.roux@eurecom.fr>
Co-authored-by: Mikel Irazabal <mikel.irazabal@openairinterface.com>

executables/nr-uesoftmodem.h

@@ -2,6 +2,7 @@
 #define NR_UESOFTMODEM_H
 #include <executables/nr-softmodem-common.h>
 #include <executables/softmodem-common.h>
+#include "common/utils/threadPool/thread-pool.h"
 #include "PHY/defs_nr_UE.h"
 
 #define  CONFIG_HLP_IF_FREQ                "IF frequency for RF, if needed\n"
@@ -78,7 +79,7 @@ typedef struct {
   uint64_t optmask; // mask to store boolean config options
   uint32_t ofdm_offset_divisor; // Divisor for sample offset computation for each OFDM symbol
   int max_ldpc_iterations; // number of maximum LDPC iterations
-  tpool_t Tpool; // thread pool
+  tpool_t Tpool;
   int UE_scan_carrier;
   int UE_fo_compensation;
   uint64_t if_freq;