message: feature: show version and git sha in pika -v
diff: #include "include/pika_define.h"
  #include "include/pika_version.h"
  #include "include/pika_cmd_table_manager.h"
  +#include "include/build_version.h"
  #ifdef TCMALLOC_EXTENSION
  #include <gperftools/malloc_extension.h>
  @@ -30,7 +31,10 @@ static void version() {
  char version[32];
  snprintf(version, sizeof(version), "%d.%d.%d", PIKA_MAJOR,
  PIKA_MINOR, PIKA_PATCH);
  - printf("-----------Pika server %s ----------\n", version);
  + std::cout << "-----------Pika server----------" << std::endl;
  + std::cout << "pika_version: " << version << std::endl;
  + std::cout << pika_build_git_sha << std::endl;
  + std::cout << "pika_build_compile_date: " << pika_build_compile_date << std::endl;
  }
  static void PikaConfInit(const std::string& path) {
  