all viewpoints available in manual annotation tool

[TanyaStere42]

Expected Behavior

1. User is on an encounter looking at gallery
2. User selects Add annotation from hamburger menu ( opens src/main/webapp/encounters/manualAnnotation.jsp)
3. In Viewpoint dropdown, all viewpoints from src/main/webapp/encounters/Annotation.java are available. Dropdown also includes a value of ----- to support viewpoint-less algorithms

ex: If VALID_VIEWPOINTS lists the following:

    private static final String[][] VALID_VIEWPOINTS = new String[][] {
        {"up",        "up",            "up",        "up",            "up",       "up",           "up",        "up",          },
        {"upfront",   "upfrontright",  "upright",   "upbackright",   "upback",   "upbackleft",   "upleft",    "upfrontleft"  },
        {"front",     "frontright",    "right",     "backright",     "back",     "backleft",     "left",      "frontleft"    },
        {"downfront", "downfrontright","downright", "downbackright", "downback", "downbackleft", "downleft",  "downfrontleft"},
        {"down",      "down",          "down",      "down",          "down",     "down",         "down",      "down"         }
};

Then the list should contain:

Note that no duplicates are included

Current Behavior

1. User is on an encounter looking at gallery
2. User selects Add annotation from hamburger menu ( opens src/main/webapp/encounters/manualAnnotation.jsp)
3. In Viewpoint dropdown, only the viewpoints that have been previously seen for a species are listed

Community Link
https://community.wildme.org/t/missing-viewpoints-in-add-annotation-functionality/303/4

[NNattoji]

Feature tested locally using an image from the web. All viewpoints show up now after the feature implementation.