feat: Add support for meminfo

Signed-off-by: Brad Beam <[email protected]>

fixtures.ttar

@@ -1674,6 +1674,52 @@ md101 : active (read-only) raid0 sdb[2] sdd[1] sdc[0]
 unused devices: <none>
 Mode: 644
 # ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
+Path: fixtures/proc/meminfo
+Lines: 42
+MemTotal:       15666184 kB
+MemFree:          440324 kB
+Buffers:         1020128 kB
+Cached:         12007640 kB
+SwapCached:            0 kB
+Active:          6761276 kB
+Inactive:        6532708 kB
+Active(anon):     267256 kB
+Inactive(anon):      268 kB
+Active(file):    6494020 kB
+Inactive(file):  6532440 kB
+Unevictable:           0 kB
+Mlocked:               0 kB
+SwapTotal:             0 kB
+SwapFree:              0 kB
+Dirty:               768 kB
+Writeback:             0 kB
+AnonPages:        266216 kB
+Mapped:            44204 kB
+Shmem:              1308 kB
+Slab:            1807264 kB
+SReclaimable:    1738124 kB
+SUnreclaim:        69140 kB
+KernelStack:        1616 kB
+PageTables:         5288 kB
+NFS_Unstable:          0 kB
+Bounce:                0 kB
+WritebackTmp:          0 kB
+CommitLimit:     7833092 kB
+Committed_AS:     530844 kB
+VmallocTotal:   34359738367 kB
+VmallocUsed:       36596 kB
+VmallocChunk:   34359637840 kB
+HardwareCorrupted:     0 kB
+AnonHugePages:     12288 kB
+HugePages_Total:       0
+HugePages_Free:        0
+HugePages_Rsvd:        0
+HugePages_Surp:        0
+Hugepagesize:       2048 kB
+DirectMap4k:       91136 kB
+DirectMap2M:    16039936 kB
+Mode: 664
+# ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 Directory: fixtures/proc/net
 Mode: 755
 # ttar - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -