Improved image dec. modules & New dummy modules

* Improved image decoding modules:
- Fixed error that appeared after last commit (eebe859f83).
- Changed some functions to use the mem*_t classes.
- Implemented cell*DecSetParameter.

* Created new dummy modules for sys_net (0x0000), sys_http (0x0001),
cellHttpUtil (0x0002) and cellSsl (0x0003).
More dummy modules

* 41 new dummy modules created.

NOTE: I have detached the previous 4 dummy modules of my last commit
(1a85ccbbf4) from the project since they will consume space of the
executable, and compilation time and don't provide anything useful yet,
the same applies to this commit. The only reason to provide this dummy
modules is to avoid that developers have to spend too much time on
creating the template of the module before implementing functions. If
you want to implement a function of any of these modules, add the
corresponding file to the project first.
Some Modules updated to use mem*_t class

cellKb, cellMouse and cellSysutil now use the mem*_t instances instead
of using "u32 *_addr" variables.
Small issue fixed
Merge pull request #7 from AlexAltea/master

Some modules updated / improved & New dummy modules