add proc-pid-statm parser and tests

docs/parsers/proc_pid_statm.md

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+[Home](https://kellyjonbrazil.github.io/jc/)
+<a id="jc.parsers.proc_pid_statm"></a>
+
+# jc.parsers.proc\_pid\_statm
+
+jc - JSON Convert `/proc/<pid>/statm` file parser
+
+Usage (cli):
+
+    $ cat /proc/1/statm | jc --proc
+
+or
+
+    $ jc /proc/1/statm
+
+or
+
+    $ cat /proc/1/statm | jc --proc-pid_statm
+
+Usage (module):
+
+    import jc
+    result = jc.parse('proc', proc_pid_statm_file)
+
+or
+
+    import jc
+    result = jc.parse('proc_pid_statm', proc_pid_statm_file)
+
+Schema:
+
+    {
+      "size":                   integer,
+      "resident":               integer,
+      "shared":                 integer,
+      "text":                   integer,
+      "lib":                    integer,
+      "data":                   integer,
+      "dt":                     integer
+    }
+
+Examples:
+
+    $ cat /proc/1/statm | jc --proc -p
+    {
+      "size": 42496,
+      "resident": 3313,
+      "shared": 2169,
+      "text": 202,
+      "lib": 0,
+      "data": 5180,
+      "dt": 0
+    }
+
+<a id="jc.parsers.proc_pid_statm.parse"></a>
+
+### parse
+
+```python
+def parse(data: str, raw: bool = False, quiet: bool = False) -> Dict
+```
+
+Main text parsing function
+
+Parameters:
+
+    data:        (string)  text data to parse
+    raw:         (boolean) unprocessed output if True
+    quiet:       (boolean) suppress warning messages if True
+
+Returns:
+
+    Dictionary. Raw or processed structured data.
+
+### Parser Information
+Compatibility:  linux
+
+Version 1.0 by Kelly Brazil (kellyjonbrazil@gmail.com)