Epiread: added a constructor to make an epiread from a line from a states file

Author: andrewdavidsmith

src/common/Epiread.hpp

@@ -22,10 +22,11 @@
 #include "smithlab_utils.hpp"
 
 struct epiread {
-  std::string chr;
-  size_t pos;
-  std::string seq;
-  epiread() {}
+  std::string chr{};
+  size_t pos{};
+  std::string seq{};
+  epiread() = default;
+  epiread(const std::string &line);
   epiread(const size_t p, const std::string &s) : pos(p), seq(s) {}
   epiread(const std::string &c, const size_t p, const std::string &s)
       : chr(c), pos(p), seq(s) {}