fix references in files imported from TS 101 671

Update the references to use existing references from TS 102 232-1
(if present), or a new [XX..] reference to be updated in sync
with additions to TS 102 232-1 clause 2.

The translation is shown below.
In some cases, a newer document is used (e.g., 3GPP instead of GSM).
If the document ID isn't given for the new reference,
use the existing document ID.

Old                             New
---                             ---
TS 101 671 [81]                 [4]
3GPP TS 33.108 [61]             [9]
ISO 3166-1 [67]                 [10]
ITU-T Recommendation X.680 [33] Recommendation ITU-T X.680 [11]
TS 101 909-20-01 [69]           TS 101 909-20-1 [33]

ES 201 671 [i.5]                [i.XX1]
EN 301 040 [72]                 [XX2]
ITU-T Q.850 [31]                Recommendation ITU-T Q.850 [XX3]
3GPP TS 23.003 [76]             [XX4]
EN 300 356 [5]                  [XX5]
TS GSM 09.02 [32]               3GPP TS 29.002 [XX6]
RFC 3261 [59]                   IETF RFC 3261 [XX7]
RFC 3966 [68]                   IETF RFC 3966 [XX8]
EN 300 403-1 [6]                [XX9]
3GPP TS 24.008 [41]             [XX10]
3GPP 25.413 [82]                3GPP TS 25.413 [XX11]
3GPP TS 29.118 [83]             [XX12]
EN 300 392-1 [40]               [XX13]
3GPP TS 03.32 [57]              3GPP TS 23.032 [XX14]
EN 300 097-1 [14]               [XX15]
EN 300 286-1 [23]               [XX16]
EN 300 185-1 [19]               [XX17]
EN 300 130-1 [16]               [XX18]
EN 300 188-1 [20]               [XX19]
EN 300 369-1 [25]               [XX20]
EN 300 207-1 [21]               [XX21]
3GPP TS 03.33 [42]              [XX22]          Use 3GPP TS 33.108 [9] ?