#5004 Maintain consistent element order in exports

[rogin]

Initial testing by @jonbartels showed promise. Should be unit testable, but none provided.

[jonbartels]

Fixes #5004

[jonbartels]

My testing notes:

A quick peek shows that channel IDs are ordered:

      <enabledChannelIds>
        <string>ae998ba0-dfa4-4408-a1c4-5dc14d52a088</string>
        <string>bf1f325b-e055-46d9-910f-2ae2e3bea41a</string>
        <string>23ae9d81-df20-4bf5-a9b5-3132ccde7c8a</string>
      </enabledChannelIds>

I created a channel and changed code template scopes, dependencies, enabled/disabled channels. A diff between server exports after these changes is MUCH easier to read:

➜ diff 2023-05-20\ Mirth\ Backup.xml 2023-05-20\ Mirth\ Backup.2.xml          
2c2
<   <date>2023-05-20 13:08:37</date>
---
>   <date>2023-05-20 13:09:22</date>
1191c1191
<       <revision>1</revision>
---
>       <revision>2</revision>
1193c1193
<         <time>1684602500152</time>
---
>         <time>1684602558403</time>
1199d1198
<         <string>ae998ba0-dfa4-4408-a1c4-5dc14d52a088</string>
1203c1202,1204
<       <disabledChannelIds/>
---
>       <disabledChannelIds>
>         <string>ae998ba0-dfa4-4408-a1c4-5dc14d52a088</string>
>       </disabledChannelIds>
1208c1209
<           <revision>1</revision>
---
>           <revision>2</revision>
1210c1211
<             <time>1684602500181</time>
---
>             <time>1684602558433</time>
1214a1216
>               <contextType>CHANNEL_DEPLOY</contextType>
1215a1218
>               <contextType>CHANNEL_UNDEPLOY</contextType>
1221a1225
>               <contextType>CHANNEL_ATTACHMENT</contextType>    

[kpalang]

I would also like to see this PR merged. The issue this PR solves creates a lot of unnecessary noise versioning systems.

[lbittle]

Just letting everyone know that this PR went into BridgeLink 4.5.4.