Setting dac names for CTB (C++ and Python) (#413)

# Setting DAC names for CTB
* Introduced new shared memory for CTB only
* Prepared for additional functionality 
* Works from C++ and Python

Co-authored-by: Dhanya Thattil <dhanya.thattil@psi.ch>

slsDetectorSoftware/tests/test-CtbConfig.cpp

@@ -0,0 +1,59 @@
+#include "catch.hpp"
+#include <string>
+
+#include <stdlib.h>
+
+#include "SharedMemory.h"
+#include "CtbConfig.h"
+using namespace sls;
+#include <fstream>
+
+
+TEST_CASE("Default construction"){
+    static_assert(sizeof(CtbConfig) == 360); // 18*20 
+
+    CtbConfig c;
+    auto names = c.getDacNames();
+    REQUIRE(names.size() == 18);
+    REQUIRE(names[0] == "dac0");
+    REQUIRE(names[1] == "dac1");
+    REQUIRE(names[2] == "dac2");
+    REQUIRE(names[3] == "dac3");
+}
+
+TEST_CASE("Set and get a single dac name"){
+    CtbConfig c;
+    c.setDacName(3, "vrf");
+    auto names = c.getDacNames();
+
+    REQUIRE(c.getDacName(3) == "vrf");
+    REQUIRE(names[3] == "vrf");
+}
+
+TEST_CASE("Set a name that is too large throws"){
+    CtbConfig c;
+    REQUIRE_THROWS(c.setDacName(3, "somestringthatisreallytolongforadatac"));
+}
+
+TEST_CASE("Length of dac name cannot be 0"){
+    CtbConfig c;
+    REQUIRE_THROWS(c.setDacName(1, ""));
+}
+
+TEST_CASE("Copy a CTB config"){
+    CtbConfig c1;
+    c1.setDacName(5, "somename");
+
+    auto c2 = c1;
+    //change the name on the first object 
+    //to detecto shallow copy
+    c1.setDacName(5, "someothername");
+    REQUIRE(c2.getDacName(5) == "somename");
+}
+
+TEST_CASE("Move CtbConfig "){
+    CtbConfig c1;
+    c1.setDacName(3, "yetanothername");
+    CtbConfig c2(std::move(c1));
+    REQUIRE(c2.getDacName(3) == "yetanothername");
+}