1822 hi restructure hi modules (#1823)

* Flatten hi directory structure

* Move functions from science_direct_events.py into hi_l1a.py

* Move functions from histogram.py into hi_l1a.py

* fix documentation build and missed test failures

Author: tmplummer

docs/source/code-documentation/hi.rst

@@ -7,25 +7,27 @@ IMAP-Hi
 
 This is the IMAP-Hi instrument module, which contains the code for processing data from the IMAP-Hi instrument.
 
-The processing code is divided into several submodules, each of which is
+The processing code is divided into several modules, each of which is
 used to process different level of data.
 
-Level 1A Processing code.
+Hi Processing code by level of product it produces.
 
 .. autosummary::
     :toctree: generated/
     :template: autosummary.rst
     :recursive:
 
-    l1a.hi_l1a
-    l1a.histogram
-    l1a.science_direct_event
+    hi_l1a
+    hi_l1b
+    hi_l1c
+    hi_l2
 
-Level 1B Processing code.
+The modules below contain various utility classes and functions to support L0
+and L1a processing:
 
 .. autosummary::
     :toctree: generated/
     :template: autosummary.rst
     :recursive:
 
-    l1b.hi_l1b
+    utils

docs/source/conf.py

@@ -105,10 +105,12 @@
     (r"py:.*", r".*IntEnum.*"),
     (r"py:.*", r".*space_packet_parser.*"),
     (r"py:.*", r".*CoDICECompression.*"),
+    (r"py:.*", r".*RectangularSkyMap.*"),
     (r"py:.*", r".*.lo.l0.utils.*"),
     (r"py:.*", r".*.lo.l0.data_classes.*"),
-    (r"py:.*", r".*.hi.l1b.hi_l1b.CoincidenceBitmap.*"),
-    (r"py:.*", r".*.hi.l1b.hi_l1b.TriggerId.*"),
+    (r"py:.*", r".*.hi.*.CoincidenceBitmap.*"),
+    (r"py:.*", r".*.hi.hi_l1b.TriggerId.*"),
+    (r"py:.*", r".*.hi.hi_l1c.CalibrationProductConfig.*"),
     (r"py:.*", r".*.hit.l0.utils.*"),
     (r"py:.*", r".*.hit.l0.data_classes.*"),
     (r"py:.*", r".*.hit.l1a.*"),

imap_processing/cli.py

@@ -51,10 +51,7 @@
 from imap_processing.glows.l1a.glows_l1a import glows_l1a
 from imap_processing.glows.l1b.glows_l1b import glows_l1b
 from imap_processing.glows.l2.glows_l2 import glows_l2
-from imap_processing.hi.l1a import hi_l1a
-from imap_processing.hi.l1b import hi_l1b
-from imap_processing.hi.l1c import hi_l1c
-from imap_processing.hi.l2 import hi_l2
+from imap_processing.hi import hi_l1a, hi_l1b, hi_l1c, hi_l2
 from imap_processing.hit.l1a.hit_l1a import hit_l1a
 from imap_processing.hit.l1b.hit_l1b import hit_l1b
 from imap_processing.hit.l2.hit_l2 import hit_l2