doc: Scrubbed ALL sensor library descriptions

In an effort to clean-up and standardize UPM library
documentation, this commit updates (and in most cases,
unifies) the CMake description string AND CXX header
@comname string.

Strings were taken from datasheets when possible, spelling
mistakes were addressed, copy/paste errors where fixed,
Title Case was used, etc.

    * Tested/updated/added @web tags
    * Added/updated invalid sensor images
    * Added/updated @man tags, added missing manufacturers

Signed-off-by: Noel Eck <noel.eck@intel.com>

src/ttp223/CMakeLists.txt

@@ -1,5 +1,5 @@
 upm_mixed_module_init (NAME ttp223
-    DESCRIPTION "Capacitive touch sensor"
+    DESCRIPTION "Capacitive Touch Sensor"
     C_HDR ttp223.h
     C_SRC ttp223.c
     CPP_HDR ttp223.hpp

src/ttp223/ttp223.hpp

@@ -35,7 +35,7 @@ namespace upm {
 /**
  * @library ttp223
  * @sensor ttp223
- * @comname TTP223 Touch Sensor
+ * @comname Capacitive Touch Sensor
  * @altname Grove Touch Sensor
  * @type touch
  * @man seeed