hrsc2isis support for level 3 images (DOI-USGS#5560)

* Remove label check for level3

* update changelog

* fix test

* addressed PR feedback

* fixed grammar

CHANGELOG.md

@@ -51,6 +51,7 @@ release.
 - Fixed qmos segfault under GEOS 3.12 [#5539](https://github.com/DOI-USGS/ISIS3/issues/5539)
 - Fixed CSMSerialNumber.trn typo [#5485](https://github.com/DOI-USGS/ISIS3/issues/5485)
 - Fixed CSMSerialNumber.trn to be PVL compliant [#5484](https://github.com/DOI-USGS/ISIS3/issues/5484)
+- Fixed hrsc2isis to support level 3 hrsc images [#5497](https://github.com/DOI-USGS/ISIS3/issues/5497)
 
 ### Added
 - Added versioned default values to lrowacphomap's PHOALGO and PHOPARCUBE parameters and updated lrowacphomap to handle them properly. [#5452](https://github.com/DOI-USGS/ISIS3/pull/5452)

isis/src/mex/apps/hrsc2isis/hrsc2isis.cpp

@@ -69,9 +69,7 @@ namespace Isis{
       throw IException(IException::User, msg, _FILEINFO_);
     }
 
-    // This program is setup to work with Mex HRSC processing level 1 and 2 only.
-    // Not level 3 (Mapped)
-    if ((int)label["PROCESSING_LEVEL_ID"] >= 3) {
+    if ((int)label["PROCESSING_LEVEL_ID"] >= 4) {
       QString msg = "File [" + ui.GetFileName("FROM");
       msg += "] has keyword [PROCESSING_LEVEL_ID = " + label["PROCESSING_LEVEL_ID"][0] + "]";
       msg += " and can not be read by this program.";

isis/src/mex/apps/hrsc2isis/hrsc2isis.xml

@@ -7,7 +7,7 @@
   <description> 
     <p>
       This program imports Mars Express HRSC files. This includes both the HRSC 
-      Stereo and the SRC instruments with procesing level of "1" or "2" (not "3"). 
+      Stereo and the SRC instruments with processing level of "1", "2", or "3" (not "4"). 
       The program populates all label keywords necessary to create the corresponding camera
       models.
     </p>