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/hm11/CMakeLists.txt

@@ -1,5 +1,5 @@
 set (libname "hm11")
-set (libdescription "Grove hm11 bluetooth low energy module")
+set (libdescription "Bluetooth Low Energy Module")
 set (module_src ${libname}.cxx)
 set (module_hpp ${libname}.hpp)
 upm_module_init(mraa)

src/hm11/hm11.hpp

@@ -55,13 +55,13 @@ namespace upm {
     /**
      * @library hm11
      * @sensor hm11
-     * @comname HM-11 Bluetooth Low Energy
+     * @comname Bluetooth Low Energy Module
      * @altname Grove BLE
      * @altid HM-10, HM-12
      * @type wifi
      * @man seeed
      * @con uart
-     * @web http://www.seeedstudio.com/wiki/images/c/cd/Bluetooth4_en.pdf
+     * @web http://wiki.seeed.cc/Bluetooth_V4.0_HM_11_BLE_Module/
      *
      * @brief API for the HM-11 4.0 Bluetooth Low Energy Module
      *