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/nrf24l01/CMakeLists.txt

@@ -1,5 +1,5 @@
 set (libname "nrf24l01")
-set (libdescription "NRF tx/rx")
+set (libdescription "NRF Transceiver")
 set (module_src ${libname}.cxx)
 set (module_hpp ${libname}.hpp)
 upm_module_init(mraa)

src/nrf24l01/nrf24l01.hpp

@@ -169,7 +169,7 @@ typedef enum {
 /**
  * @library nrf24l01
  * @sensor nrf24l01
- * @comname NRF24L01 Transceiver
+ * @comname NRF Transceiver
  * @type wifi
  * @man seeed sparkfun
  * @web http://www.seeedstudio.com/depot/nRF24L01Module-p-1394.html