Unify flags output -> 1, change settings

[compsystems]

Hello

As FlagCmdName() returns the value of the flag (rcl value), then FlagCmdName(#) should return 1 alias of executed

// examples: set flags
1:
autosimplify(2) returns
1

2:
xcas_mode(0) returns
"Warning: some commands like subs might change arguments order"
Why a string and not 1?

idea
xcas_mode(0) returns
"Warning: some commands like subs might change arguments order"
1

3:
approx_mode(0) returns
0. Why 0 and not 1?
idea

3:
approx_mode(0) returns
1


// rcl
4:
approx_mode() returns
0

5:
xcas_mode() returns
0

6:
xcas_mode(0) returns
2