library: eliminated the questionable 'procps.h' header

There was a time when that procps.h file served a more
traditional role. Prior to the commit referenced below
it held just macros plus manifest constants. But, with
that change, such items were replaced with a series of
includes embracing all the library exported functions.

That approach was known to disguise errors which would
have otherwise yielded a compiler warning. And without
such a warning, there was no way to address the error.

So this patch will trade the all inclusive header file
approach for individual includes only where necessary.

Reference(s):
. April 2016, procps.h header file revamped
commit ccb6ae8de1
. Sept 2018, top abandoned use of procps.h
commit a6dfc2382e

Signed-off-by: Jim Warner <james.warner@comcast.net>

proc/escape.h

@@ -8,7 +8,9 @@
 #define ESC_BRACKETS 0x2  // if using cmd, put '[' and ']' around it
 #define ESC_DEFUNCT  0x4  // mark zombies with " <defunct>"
 
-
 int escape_command(char *__restrict const outbuf, const proc_t *__restrict const pp, int bytes, int *cells, unsigned flags);
 
+#define ESC_STRETCH 1  // since we mangle to '?' this is 1 (would be 4 for octal escapes)
+int escape_str(char *__restrict dst, const char *__restrict src, int bufsize, int *maxcells);
+
 #endif