Squashed commit of the following:

commit 73994327de890590eede353c8131f3f7c1e8aaa3
Author: Ian Roddis <gitlab@ie2r.com>
Date:   Wed Aug 25 13:38:29 2021 -0300

    - Fixing up checks for individual dag runs

commit f20e3a3dec8c063111cf60f2bec2b8f84c8a4100
Author: Ian Roddis <gitlab@ie2r.com>
Date:   Wed Aug 25 10:49:43 2021 -0300

    - Finishing serialization of DAGRun
    - Checkpointing work.

commit b490abadf93e3085e4204003de7eaa8183b4e1d5
Author: Ian Roddis <gitlab@ie2r.com>
Date:   Wed Aug 25 10:34:08 2021 -0300

    - Consolidating struct definitions into Defines.hpp
    - Renaming DAGRunRecord member runStates to taskRunStates

commit 050346ec1fd10d1091f261905c6175ffe0bcf001
Author: Ian Roddis <gitlab@ie2r.com>
Date:   Wed Aug 25 09:27:05 2021 -0300

    - Adding additional tests for server endpoints

README.md

@@ -37,6 +37,12 @@ and [postgres](https://postgresql.org).
 Building
 ==
 
+**Requirements:**
+
+- git
+- cmake >= 3.14
+- gcc >= 9
+
 ```
 git clone https://gitlab.com/iroddis/daggy
 cd daggy