memory normalization to bytes when input is bytes

[omer-do]

Describe the bug
The normalizeMemoryToBytes function is taking memory string input. The for loop iterating over the input string assumes input must have a non-digit character, where memory limit can be set in bytes (only digits).

Steampipe version (steampipe -v)
Steampipe v1.0.2

Plugin version (steampipe plugin list)

hub.steampipe.io/plugins/turbot/aws@latest | 1.5.0 | aws |
hub.steampipe.io/plugins/turbot/kubernetes@latest | 1.2.0 | kubernetes |
hub.steampipe.io/plugins/turbot/steampipe@latest | 1.0.0 | steampipe |

To reproduce

• create a pod that has limit configured in bytes for example "1000000000" (which is 1GB of memory)

• configure steampipe kubernetes plugin to this cluster context

• run steampipe query

• inside run:

> select * from kubernetes_pod limit 15

Error: kubernetes: failed to populate column 'containers_resources_requests_std': invalid memory value: 1288490189 (SQLSTATE HV000)

Expected behavior
a table of pods to be displayed

[omer-do]

adding link to PR #273