Made all sub-routines in init.bat importable libs (#1706)

vendor/lib/lib_console.cmd

@@ -0,0 +1,80 @@
+@echo off
+
+rem set args=%*
+
+call "%~dp0lib_base.cmd"
+set lib_console=call "%~dp0lib_console.cmd"
+
+if "%~1" == "/h" (
+    %lib_base% help "%0"
+) else if "%1" neq "" (
+    call :%*
+)
+
+exit /b
+
+:debug-output
+:::===============================================================================
+:::debug-output - Output a debug message to the console.
+:::.
+:::include:
+:::.
+:::  call "$0"
+:::.
+:::usage:
+:::.
+:::  %lib_console% debug-output [caller] [message]
+:::.
+:::required:
+:::.
+:::  [caller]  <in> Script/sub routine name calling debug-output
+:::.
+:::  [message] <in> Message text to display.
+:::.
+:::-------------------------------------------------------------------------------
+
+    if %debug-output% gtr 0 echo DEBUG(%~1): %~2 & echo.
+    exit /b
+
+:verbose-output
+:::===============================================================================
+:::verbose-output - Output a debug message to the console.
+:::.
+:::include:
+:::.
+:::  call "$0"
+:::.
+:::usage:
+:::.
+:::  %lib_console% verbose-output "[message]"
+:::.
+:::required:
+:::.
+:::  [message] <in> Message text to display.
+:::.
+:::-------------------------------------------------------------------------------
+
+    if %verbose-output% gtr 0 echo %~1
+    exit /b
+
+:show_error
+:::===============================================================================
+:::show_error - Output an error message to the console.
+:::.
+:::include:
+:::.
+:::  call "$0"
+:::.
+:::usage:
+:::.
+:::  %lib_console% show_error "[message]"
+:::.
+:::required:
+:::.
+:::  [message] <in> Message text to display.
+:::.
+:::-------------------------------------------------------------------------------
+
+    echo ERROR: %~1
+    echo CMDER Shell Initialization has Failed!
+    exit /b