Bulk convert control files. (#19986)

```
function Convert-Control {
    Param($full)
    .\vcpkg.exe format-manifest $full
    $root = $full.Substring(0, $full.Length - 7) # CONTROL
    $new = $root + 'vcpkg.json'
    $content = Get-Content -Raw $new
    $asJson = ConvertFrom-Json $content -AsHashtable -Depth 100
    $oldVersion = $asJson['port-version']
    if ($null -eq $oldVersion) {
        $oldVersionFull = $asJson['version-string']
        Write-Host "Got version $oldVersionFull"
        $match = [System.Text.RegularExpressions.Regex]::Match($oldVersionFull, '^(.+)-(\d+)$')
        if ($match.Success -and -not [System.Text.RegularExpressions.Regex]::IsMatch($oldVersionFull, '^\d\d\d\d-\d\d-\d\d$')) {
            $newFullVersion = [string]$match.Groups[1].Value
            $oldVersion = [int]$match.Groups[2].Value
            Write-Host "newFullVersion $newFullVersion oldVersion $oldVersion"
            $newVersion = $oldVersion + 1
            $asJson['version-string'] = $newFullVersion
            Write-Host "Previous version for $full extracted from version field -- setting version-string $newFullVersion and port-version $newVersion"
        } else {
            Write-Host "No previous version for $full -- setting 1"
            $newVersion = 1
        }
    } else {
        $newVersion = [int]$oldVersion + 1
        Write-Host "New version for $full : $newVersion"
    }

    $asJson['port-version'] = $newVersion

    $content = ConvertTo-Json $asJson -Depth 100
    Set-Content -Path $new -Value $content
    .\vcpkg.exe format-manifest $new
}

Get-ChildItem ports\CONTROL -Recurse | Foreach-Object {
    Convert-Control $_.FullName
}

git commit -am "this message"
.\vcpkg.exe x-add-version -all
git commit -a --amend
```

2 files changed, 31 insertions, 15 deletions

diff --git a/ports/fmi4cpp/CONTROL b/ports/fmi4cpp/CONTROL
deleted file mode 100644
index 20f8f641c..000000000
--- a/ports/fmi4cpp/CONTROL
+++ /dev/null
@@ -1,15 +0,0 @@
-Source: fmi4cpp
-Version: 0.7.0-2
-Homepage: https://github.com/NTNU-IHB/FMI4cpp
-Description: FMI 2.0 implementation written in modern C++
-Build-Depends: boost-property-tree, libzip[openssl]
-
-Feature: curl
-Build-Depends: curl
-Description: Allows loading FMUs from URL
-
-Feature: odeint
-Build-Depends: boost-ublas, boost-odeint
-Description: Adds support for wrapping Model Exchange models as Co-simulation models using odeint solvers
-
-
diff --git a/ports/fmi4cpp/vcpkg.json b/ports/fmi4cpp/vcpkg.json
new file mode 100644
index 000000000..298fa7cf4
--- /dev/null
+++ b/ports/fmi4cpp/vcpkg.json
@@ -0,0 +1,31 @@
+{
+  "name": "fmi4cpp",
+  "version-string": "0.7.0",
+  "port-version": 3,
+  "description": "FMI 2.0 implementation written in modern C++",
+  "homepage": "https://github.com/NTNU-IHB/FMI4cpp",
+  "dependencies": [
+    "boost-property-tree",
+    {
+      "name": "libzip",
+      "features": [
+        "openssl"
+      ]
+    }
+  ],
+  "features": {
+    "curl": {
+      "description": "Allows loading FMUs from URL",
+      "dependencies": [
+        "curl"
+      ]
+    },
+    "odeint": {
+      "description": "Adds support for wrapping Model Exchange models as Co-simulation models using odeint solvers",
+      "dependencies": [
+        "boost-odeint",
+        "boost-ublas"
+      ]
+    }
+  }
+}