Guard CommandExecutor and CommandHandler

[ADiea]

This functionality is sometimes not used but because it is present in places like websock and http server it occupies RAM and heap

Without CommandExecutor, compiling sample HttpServer_WebSockets

#Memory / Section info:
------------------------------------------------------------------------------
   Section|                   Description| Start (hex)|   End (hex)|Used space
------------------------------------------------------------------------------
      data|        Initialized Data (RAM)|    3FFE8000|    3FFE8384|     900
    rodata|           ReadOnly Data (RAM)|    3FFE8390|    3FFEA264|    7892 (-956)
       bss|      Uninitialized Data (RAM)|    3FFEA268|    3FFF1100|   28312 (-144)
      text|            Cached Code (IRAM)|    40100000|    40105E46|   24134
irom0_text|           Uncached Code (SPI)|    4020A000|    40254163|  303459 (-3247)
Total Used RAM : 37104
Free RAM : 44816
Free IRam : 8652
------------------------------------------------------------------------------

[slaff]

@ADiea When I export DISABLE_CMD_EXEC=1 and the compile the samples some of them fail (Arducam, CommandProcessing_Debug and Telnet_TCPServer_TCPClient for example).

Please, make sure that they compile. Steps to reproduce

cd $SMING_HOME
export DISABLE_CMD_EXEC=1
make dist-clean
make samples

[anakod]

I prefer use full names to keep things clear, it shouldn't be problem to write it :)

DISABLE_COMMAND_EXECUTOR or DISABLE_CMD_EXECUTOR

[anakod]

Sorry! Have checked current Makefile code, if we already have "ENABLE_SSL" than we should add new flags in same manner, I think: ENABLE_XXX.
So ENABLE_COMMAND_EXECUTOR=0 or ENABLE_CMD_EXECUTOR=0

[slaff]

The same directive should be also in the Makefile-project.mk file.

[ADiea]

Basically this is only used for sming building so app should not care for this flag. But will add it anyway for completion.

[slaff]

Ok, then just remove it from here. Rename also the directive as anakod suggested: ENABLE_COMMAND_EXECUTOR and take care to change the preprocessor if-conditions accordingly.