phosphor-objmgr: recipe cleanups

Big cleanups to the phosphor-mapper/phosphor-objmgr recipe.

  - Remove all "mapper-config-native" constructs as the underlying
    repository has no such support.

  - Remove all mapper-related bbclasses as they are no longer relevant.

  - Remove environment support in service file as the mapper executable
    no longer supports any arguments.

  - Greatly simplify the 'libmapper' packaging to avoid stray python
    in the recipe.

  - Update all recipes to use `DEPENDS += "libmapper"` where appropriate
    for clarity if they use libmapper.

  - Rename the recipe from phosphor-mapper to phosphor-objmgr to match
    the repository name, which allows simpler devtool invocations.

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I5a64e2feddd1a7919813e007411f9c28b6c9a330
diff --git a/meta-yadro/meta-nicole/recipes-phosphor/cli/obmc-yadro-cli_%.bbappend b/meta-yadro/meta-nicole/recipes-phosphor/cli/obmc-yadro-cli_%.bbappend
index 6617917..9e33b94 100644
--- a/meta-yadro/meta-nicole/recipes-phosphor/cli/obmc-yadro-cli_%.bbappend
+++ b/meta-yadro/meta-nicole/recipes-phosphor/cli/obmc-yadro-cli_%.bbappend
@@ -5,6 +5,6 @@
     openpower-esel-parser \
     phosphor-debug-collector \
     phosphor-led-manager \
-    phosphor-mapper \
+    phosphor-objmgr \
     phosphor-state-manager \
 "