v0.1.0-alpha

Changes:
- Implement bootstrapping library for managing several concurrent internal services
- Refactor concurrency model for connections/logical clients and their associated I/O
- Refactor server context singleton
- Refactor error handling
    - Most errors are now gracefully sent to the FSD client directly encoded as an $ER packet,
      enhancing visibility and debugging
    - Most errors are now rightfully treated as non-fatal
- Refactor package/dependency graph
- Refactor calling conventions/interfaces for many packages
- Refactor database package
- Refactor post office

Features:
- Add VATSIM-esque HTTP/JSON "data feed"
- Add ephemeral in-memory database option
- Add user management REST API
- Add improved web interface
- Add MySQL support (drop SQLite support)

web/templates/login.html

@@ -0,0 +1,37 @@
+{{ template "layout.html" . }}
+
+{{ define "title" }} Login {{ end }}
+
+{{ define "content" }}
+<div class="container-fluid mt-3">
+    <form id="login-form" action="/login" method="POST">
+    <div class="row">
+        <div class="col-sm-4">
+            <div class="mb-3">
+                <input type="number" class="form-control-sm" id="cid" name="cid" placeholder="CID" required>
+            </div>
+        </div>
+    </div>
+
+    <div class="row">
+        <div class="col-sm-8">
+            <div class="mb-3">
+                <input type="password" class="form-control-sm" id="password" name="password" placeholder="Password" required>
+            </div>
+        </div>
+    </div>
+
+    <div class="row">
+        <div id="alert"></div>
+    </div>
+
+    <div class="row">
+        <div class="mb-3">
+            <button type="submit" class="form-control-sm btn-sm btn-outline-dark" id="submit">Login</button>
+        </div>
+    </div>
+    </form>
+
+    <script src="/static/js/login.js"></script>
+</div>
+{{ end }}